Chemical Nomenclature and Chemical Formulas - Owlcation - Education
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Chemical Nomenclature and Chemical Formulas

chemical-nomenclature-and-chemical-formulas

Introduction

Chemistry is involved with various and diverse interactions of matter either around us or simply inside the laboratory. These are described using the language of chemistry which consists of symbols, formulas and equations.

Symbols are used as shorthand abbreviations for elements composed of a single capital letter or a capital letter and one or two small letters like H, O, Cl, Na, or Unq.

Formulas are combinations of symbols such as CO2 for carbon dioxide, C6H22O11for table sugar and HCl for hydrochloric acid.

Chemical reactions are composed of elements and compounds which are described through chemical equations using symbols and formulas.

Chemical symbols of  some elements

Chemical symbols of some elements

Chemical Symbols

Chemical symbols are shorthand abbreviations for elements composed of a single capital letter or a capital letter and one or two small letters.

Chemical Formula

Chemical formula indicates the relative number of atoms of each element in a substance. It consists of symbols of elements and subscripts which give the number of atoms of each element.

Examples:

  • The formula of water is H2O

There are 2 atoms of Hydrogen and 1 atom of oxygen

  • The formula of glucose is C6H12O6

There are 6 atoms of Carbon, 12 atoms of Hydrogen and 6 atoms of Oxygen.

In writing formulas, the total positive charges plus the total negative charges must equal to zero since the compound is electrically neutral.

Examples of common, simple and polyatomic ions

Examples of common, simple and polyatomic ions

Rules in writing formulas of compounds

There are basic rules in writing formulas of compounds. These are:

  1. Write first the symbol of the positive ion followed by the symbol of the negative ion or radical. A radical or polyatomic ion is a group of atoms which acts as a single atom.
  2. Criss-cross: the valence of the positive ion becomes the subscript of the negative ion, while the valence of the negative ion becomes the subscript of the positive ion. (You have to disregard the sign) Example: Al+3 O-2 = Al2O3
  3. If the valence is numerically equal, there is no need to criss -cross since the sum of the valence is zero. Example: Ca+2O-2 = CaO
  4. Do not write the subscript if it is only 1.
  5. If the subscript of the radical is greater than 1, the radical is enclosed with a parenthesis. Example: Mg-2PO-3 = Mg3 (PO2)2
  6. Subscripts should be reduced to the lowest ratio. Example: Sn+4 O-2 = Sn2 O4 = SnO2

How Are Compounds Named

There are several types of compounds. These are the acids, bases, salts, and oxides. This lesson will show you how to name each compound correctly.

Acids

These are compounds of weakly bonded H atoms. In solution, they release ions. A given nonmetal may form a series of acids.

Naming Acid Compounds

Naming Acid Compounds

Common Acids with their Formulas and Uses

Common Acids with their Formulas and Uses

Common Acids

HBrO3 - Bromic acid

HlO3 - Iodic acid

HClO3 - Chloric acid

HBO3 - Boric acid

HMnO3 - Manganic acid

H2SO4 - Sulfuric acid

H3PO4 - Phosphoric acid

H3AsO4 - Arsenic acid

  • Note that all acids above have names ending in ‘ic’ attached to the stem of the name of the nonmetal. The number of oxygen atoms in common acid is either 3 (column 1) or 4 (column 2). You have to remember this:

To name a series of acids formed by a given nonmetal, consider the following:

HClO4 perchloric acid

HCIO3 chloric acid

HCLO2 chlorous acid

HCIO hypochlorous acid

HCI hypochloric acid

The system adopted is as follows:

  1. The suffix ‘ic’ denotes the common acid (HCIO).
  2. The suffix ‘ous’ denotes an acid containing one less oxygen atom than the common acid (HCIO2).
  3. The prefix ‘hypo’ with the suffix ‘ous’ denotes an acid with two less oxygen atoms than the common acid (HCIO).
  4. The prefix ‘per’ with the suffix ‘ic’ denotes an acid containing one more oxygen atom than the common acid (HClO4).
  5. The prefix ‘hydro’ with the suffix ‘ic’ denotes an acid with no oxygen (HCl).

Answer the following:

1. Name the following acids:

a. HbrO2

b. HI

c. H2SO3

d. HMnO4

e. H2S

2. Write the chemical formula of the following:

a. Hydrobromic acid d. Hypoiodous acid

b. Nitrous acid e. Bromous acid

c. Periodic acid

  • Note: (c) is read as per-iod-ic acid.

Names of 10 Acids

Bases

These are the compounds identified by the presence of the hydroxide group (OH). Name of the metallic portion first followed by the word hydroxide.

Examples:

NaOH - Sodium Hydroxide

Fe(OH)2 - Iron(II) Hydroxide or Ferrous Hydroxide

Fe(OH)3 - Iron(III) Hydroxide or Ferric Hydroxide

Names of 10 Bases

The strengths and weaknesses of acids and bases

Salts

Salts are formed when metallic atoms replace the weakly bonded hydrogen atoms of an acid. They are named after the acid from which they are formed. The name of the metal comes first, followed by the name of the nonmetallic group. The ending ‘ic’ is changed to ‘ate’ and the ending ‘ous’ to ‘ite’. For salts with no oxygen atom, the prefix ‘hydro’ is dropped and ending ‘ic’ is changed to ‘ide’.

For example, the acid HNO3 (nitric acid) forms the salt KNO3 (potassium nitrate), when the metallic atom K places H atom of the acid. As another example, the acid HNO2 (nitrous acid) forms the salt KNO potassium nitrate). The ending ‘ous’ of the acid is changed to ‘ite’.

HI (hydroiodic acid) forms the salt KI (potassium iodide). Since there is no more hydrogen atom in the salt, the prefix “hydro” of the acid name is dropped. The ending ‘ic’ of the acid is changed to “ide’ in salt.

♦ Consider the following series:

NaClO4 - Sodium Perchlorate

NaClO3 -Sodium Chlorate

NaClO2 - Sodium Chloride

NaClO - Sodium Hypochloride

NaCl - Sodium Chloride

These salts are formed by replacement of the H of the series of acids.

♦ Give the name of each of the following salts:

a. K2SO4 d. Lil

b. Ca3(PO4)2 e. KmnO4

c. Na2CO3

♦ Write the chemical formula of:

a. Sodium Nitrate

b. Magnesium Chloride

c. Calcium Sulfite

d. Sodium Hypobromite

e. Ammonium Periodate

When a metal has a variable oxidation number, its name is followed by the oxidation number written in Roman numeral enclosed in parenthesis. The old method used the stem of the Latin name and the suffixes ‘ous’ and ‘ic’ for the lower and higher states, respectively.

Examples:

FeCI2 – iron (II) chloride or ferrous chloride

FeCI3 – iron (III) chloride or ferric chloride

Common salts

Other Metallic Ions with Variable Oxidation Number

Sn+2tin(II) or stannous

Sn

+4

tin(IV) or stannic

Hg

+1

mercury(I) or mercurous

Hg

+2

mercuric(II) or mercuric

Cu

+1

copper(I) or cuprous

Cu

+2

copper(II) or cupric

Au

+1

gold(I) or aurous

Au

+3

gold(III) or auric

Pb

+2

lead(II) or plumbous

Pb

+4

lead(IV) or plumbic

Acids, Bases and Salts

Oxides

Oxides are compounds of oxygen with metals or nonmetals. Name the metal or the nonmetal first. Then use the prefixes di, tri, tetra or penta before the term oxide to indicate the number of oxygen atoms present. In case where the number of oxygen atom present can determine from oxidation number of the combined metal, the prefix is omitted.

Examples:

NO2: Nitrogen Dioxide

N2O4: Dinitrogen Tetroxide

P2O5: Phosphorus Pentoxide

PbO: Lead(II) oxide or Plumbous Oxide

PbO2: Lead(IV) oxide or Plumbous Oxide

Questions for Study and Review

I. Name the following compounds by identifying the oxidation number of the metal as you name the compounds listed below:

  1. CoBr2
  2. PbS
  3. CrSO4
  4. Fe(NO3)2
  5. Sn(ClO4)3

II. Formula Writing: Write the correct chemical formula of the following:

  1. Calcium carbonate
  2. Magnesium hydroxide
  3. Copper sulfate
  4. Carbon tetrachloride
  5. Potassium bromate
  6. Ammonium hydroxide
  7. Lead nitrate
  8. Sulfuric acid
  9. Nitric acid
  10. Boric acid


Comments

Sachin on October 23, 2019:

Thank

Krichelle kae Calderon Enriquez from San Miguel, Bulacan, Philippines on August 01, 2018:

Enriquez, Krichelle kae C. (BSMT 1), I've learned a lot about the topic on how to write chemical formula and how to name it. It is easy for us to med tech students to define what the chemicals are and what its formula or the nomenclature. Thanks to the slides that our prof provided to us, so that it can easy to us to understand about the topic.

Jeriemae DelaCruz on August 01, 2018:

Jeriemae Dela Cruz BSMT 1

I learned the different rules in writing formulas of compounds and how to do the criss cross. also i learned how to combined the different elements in the periodic table

trixie anne on August 01, 2018:

SILVESTRE, TRIXIE ANNE C. BSMT 1 the chemical reaction are in everywhere of our daily life, every day in our body occurs reactions without noticing about them, when we eat, breath even when we move occur many biological process that need chemical reactions. There are some other processes that we use in our daily life like the combustion, the oxidation and reduction and the interaction between acids and bases. That’s how we live

Allen Tuazon BSMT on August 01, 2018:

Tuazon, Allen Patrick F. (BSMT-1)

This topic discuss what and how symbols, names and formula are given in a certain element with this we can understand how chemical and elements achieve their name and properties. In our daily lives we can use this to differentiate and know what is the uses of a certain thing and how we should call it properly.

Pauline Venzon on August 01, 2018:

Venzon, Pauline Charm S. (BSMT-1)

The chemical Nomenclature is studying of symbol and names of formulas like periodic table is cindider of all number and names of symbol examples hydrogen name of formula 1 of atomic number and symbol is H. It is important to know formulas because there are so many bad things that will happend if we dont know the right formula or combinationsof what we do.

PatriciaMae Sayco on August 01, 2018:

SAYCO, PATRICIA MAE M. BSMT1 Nomenclature and formula is helpful for us to formulate right equation in term of chemical reaction. Symbols, Formulas, and Equation is the language of chemistry that we can easily identify through the help of Periodic Table of Elements.

Jimelle Conson from Bulacan on August 01, 2018:

CONSON, JIMELLE - BSMT 1.Thi lesson helped us to understand more the topic about Chemical Nomenclature and Chemical Formulas. It leds us to more broad and interesting discussion about the said topic. About the different types of compounds, etc.

Tricia Anne Reyes BSMT from Palapala, San Ildefonso Bulacan on July 31, 2018:

REYES, TRICIA ANNE I. BSMT

This lesson is very essential to us, Medical technology student because this has gave us knowledge on how chemicals are named and what are differences of four different type of compound and with this lesson we have known the rules on how to correctly write the chemical formulas and what are the common acids are and their uses in our lives.

pascualangelou on July 31, 2018:

Pascual, Mary Angelou C. ( BSMT1)

Having a knowledge on how to write a chemical formula is an advantages for us a medtech student. It can help us to identify the new compound mixture that formed in our laboratory experiments. and we also know the languages of chemistry which is the symbols, equation and formulas.

John Derrick Chan on July 31, 2018:

CHAN, JOHN DERRICK L. (BSMT1) In this lesson, we learned how to name a chemical formula by following the rules. The lesson might be hard since, we need to be aware of different terms and rules just to name a formula right but, that method can surely help us in our future workplace. It can help to be aware of different names of our specimen to handle in the future. It can help us to easily memorize things since we were already trained by this lesson. Moreover, knowing how to name chemical formula, we can identify the elements used in a product that we are using and we can mitigate danger if we are allergic to that experiment or something since we are already aware of the content a product.

Joyce Nicole on July 31, 2018:

Dungo, Joyce Nicole B. (BSMT 1) - Chemical nomenclature is the term given by naming of compounds. And knowing how to write chemical formulas enables us to easily identify the number of atoms of each element in a compound. It is also the language of chemistry because it consists of symbols, equations, and formulas

Darah Arthria Cristobal from San Ildefonso, Bulacan on July 31, 2018:

CRISTOBAL, DARAH ARTHRIA DC. BSMT1. Chemical nomenclature is the term given to the naming of compounds.A chemical formula tells us the number of atoms of each element in a compound. It is a representation of the chemical composition of a substance. This can be either a molecular or empirical formula.

kathlenecalague on July 31, 2018:

CALAGUE KATHLENE JADE BSMT1 Chemical nomenclature is essential for us in order to easily identify the type of compound including stoichiometry and type of constituent atom. Also for us to be able to appreciate chemistry better, we should know how to write correct equation of the chemicals and how to name them properly.

KristineCassandra on July 31, 2018:

Jota, Kristine Cassandra B.

BSMT 1

Learning on how to properly write a chemical symbols, formulas, and equations is important when you are in the field of medicine, it will help you and will have an advantage because it will be easier for you to answer such activities. This is important to study so you will have the background knowledge on how compounds are named, etc.

Elaine Herrera on July 31, 2018:

HERRERA, MARY ELAINE, V. BSMT A compound is a substance made up of a definite proportion of two or more elements. A chemical formula tells us the number of atoms of each element in a compound. it contains the symbols of the atoms of the element present in the compound as well as how many there are for each element in the form of subscripts. I was able to learn all of these thanks to this post.

Kimberly Reforsado on July 31, 2018:

Reforsado, Kimberly D.G. (BSMT-1)

The ability of naming and writing correct formulas of elements and compounds is a very essential skill to be possessed by a Medical Technology student. Knowledge in Chemical Nomenclature and Chemical Formula helps us to easily understand how these compounds are formed and also aids us to identify them easier. This lesson is very relevant to our course, because in the future we are going to deal with a huge amount of substances and compounds which we should be able to identify and familiarize with, without difficulty, through the use of knowledge we gained in this lesson.

De Leon, Melody Jane on July 31, 2018:

Learning how to name and write the chemical formulas of different compunds of elements is very useful. With this topic we will learned the importance to ensure each substances.

De Leon, Melody Jane on July 31, 2018:

With this study, we learned how to make chemical formulas of different compound substances that combined together. On how it is name as well. As a future medical technologist it will be very useful for us to have a background knowledge in different we might often encounter during our laboratories.

Ma. Roselle Angela S. de Leon on July 31, 2018:

De Leon, Ma. Roselle Angela S. (BSMT 1) As a future medical technologist, we should learn how to write and read formulas. This is because we cannot be able to understand chemistry if don't know how to. We should always remember that the language of chemistry are symbols, equations and formulas.

Ma. Roselle Angela S. de Leon on July 31, 2018:

BSMT 1 - Knowing how to write chemical formulas of the compounds is an advantage because with this it will easy for you to identify the compounds that are newly formed. Also, for you to be able to understand chemistry, you should know how to read and write the chemical formulas. Always remember that the language of chemistry are symbols, equations and formulas.

Abe Puzon from Bulacan, Philippines on July 31, 2018:

Puzon, Abegail S. (BSMT-1)

Learning to name and write formulas for chemical compounds requires practice with immediate feedback to help you learn from mistakes. Chemical Nomenclature is important because it ensure that a spoken or written chemical name leaves no uncertainty concerning which chemical compound the name refers to: each chemical name should refer to a single substance. A less important aim is to ensure that each substance has a single name mited number of alternative names. The form of nomenclature used depends on the audience to which it is addressed.

Nhiza Mae Fajardo on July 31, 2018:

Fajardo, Nhiza Mae A. BSMT-1

It is important to study or to know how do combined chemicals named. The fact that the language of chemistry are symbols; formulas and equations, the study about chemical nomenclature and formula are very important to us.

Chloe Bundalian on July 31, 2018:

Bundalian, Chloe Jane L. BSMT 1

the language of chemistry which consists of symbols, formulas and equations is very important to us med students. By knowing the language of chemistry we are able to name the elements or chemicals. it is useful for us because we are going to deal with chemicals inside the lab.

Emman Payuran on July 29, 2018:

Villasenor Emmanuel P. BSMT

When forming compounds, it is important to know something about the way atoms will react with each other. One of the most important manners in which atoms and/or molecules react with each other is the oxidation/reduction reaction. Oxidation/Reduction reactions are the processes of losing and gaining electrons respectively.

Pinky Miranda on July 29, 2018:

MIRANDA, MA.PINKY RAMEI V. (BSMT 1) - Knowing the proper way of naming elements or chemicals is absolutely important especially if you're in the Med field because you will always deal with chemicals and elements and besides how can you conduct experiment if you dont know how to name an element or if you dont know how to write formulas? because in this lesson, valence is essential to get the right chemical formulas thus it will determine its name.

Adereni opeyemi on July 17, 2018:

it's interesting very good

anjelacastro2 on July 12, 2018:

CASTRO, ANJELA V. ( BSMT-1) - We encounter chemical substances and compounds every day. These chemicals are made up of a fixed proportion of atoms, and these atoms are arranged in a certain way. In order to figure out what these proportions are and how they are arranged for any given substance, we need to know the chemical formula of the substance or compound. Studying chemical formulas and having a knowledge on how to name chemicals gives us the opportunity to know the different components of a substance.

Pauline Venzon on July 12, 2018:

Venzon, Pauline Charm S.

BSMT-1

Chemical formulas are important for us bcs there are chemicals needed to combine in beverages or food formulas are important for us to know how much chemicals is required to be in that specific meal.

thankyou ma'am

lawrencedsantos on May 06, 2018:

John Lawrence Delos Santos as a student we must study chemical nomenclature and formulas because it helps us to have a knowledge solving different chemical equation , first you must know first the chemical symbols shorthand abbreviations for elements composed of a single capital letter or a capital letter and one or two small letters. 4. Chemical Formula  indicates the relative number of atoms of each element in a substance. It consists of symbols of elements and subscripts which give the number of atoms of each In writing formulas, the total positive charges plus the total negative charges must equal to zero since the compound is electrically neutral.

carlo crisanto v sapiendante on April 25, 2018:

SAPIENDANTE CARLO CRISANTO V. BAC- 3 when we coined the term nomenclature it is to ensure a specific spoken or written chemical names that leaves no ambiguity in concerning whicj chemical compound which is/are refferd to. chemist uses specific rules and convemtions that we can see in the slides that can really healps us sudying chemistry. this slides helps me a alot to gained more knowledge as a future media practitioner for information dessimintaion

CRUZ, BEATRIZ DL. BS PSY3 on April 25, 2018:

A chemical formula is a way of information about the chemical proportions of atoms that constitute a particular chemical compound or molecule, using chemical element symbols, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, commas and plus (+) and minus (−) signs. These are limited to a single typographic line of symbols, which may include subscripts and superscripts. A chemical formula is not a chemical name, and it contains no words. Although a chemical formula may imply certain simple chemical structures, it is not the same as a full chemical structural formula. Chemical formulas can fully specify the structure of only the simplest of molecules and chemical substances, and are generally more limited in power than are chemical names and structural formulas.

ivoryshanesalonga on February 01, 2018:

ivory shane salonga

bstm 4-1

the relevance of chemical nomenclature in my course is like this. me as a tourism student we need to memorize different country abbreviation. simply as chemical nomenclature. it clearly state that we need to study this in order us to learn the different chemicals in our surroundings.

Jerielen Mangahas on January 18, 2018:

Jerielen Mangahas

BSTM4 (FRIDAY-TUTORIAL)

Chemical nomenclature is the term given to the naming of compounds. Chemists use specific rules and "conventions" to name different compounds.

ivoryshanesalonga on January 18, 2018:

ivory shane f. salonga

BSTM 4

(TUTORIAL/FRIDAY)

there are more than hundred of chemical nomenclature and they are called systematic name. they may be a bit ponderous, but they uniquely identify a given substance. Chemical substances have been a part the fabric of civilization and culture for thousands of years. thats why now and then substances is part of our life.

Tedyliza Ramos on January 11, 2018:

RAMOS TEDYLIZA ROSE C.

BSTM 4

(TUTORIAL/FRIDAY)

Nomenclature is a system of names or terms, or the rules for forming these terms in a particular field of arts or sciences. Nomenclature is the system of assignment of names given to organic compounds.The principles of naming vary from the relatively informal conventions of everyday speech to the internationally agreed principles, rules and recommendations that govern the formation and use of the specialist terms used in scientific and any other disciplines.

Rene Briane on August 18, 2017:

Rene Briane G. Angeles

BSEEC - III

acid, salt, bases and oxide that is the 4 things that we need to remember . acids are the chemicals that have "H" on the end of the chemical symbol. bases are the chemical that have "OH" in the end of the chemical symbol. salt are the chemicals that has no "OH" and "H" in the chemical symbols. and oxide are the chemicals that has oxygen.

Melencio, Marc James on August 17, 2017:

Melencio, Marc James

Tourism

Chemical nomenclature is a set of rules to generate systematic names for chemical compounds. Chemical formula is an expression which states the number and type of atoms present in a molecule of a substance. The type of atom is given using element symbols. The number of atoms is indicated by a subscript following the element symbol.

Christian Paul V. Ogorida BSCE II on August 17, 2017:

A chemical nomenclature is a set of rules to generate systematic names for chemical compounds. The nomenclature used most frequently worldwide is the one created and developed by the International Union of Pure and Applied Chemistry (IUPAC).

The IUPAC's rules for naming organic and inorganic compounds are contained in two publications, known as the Blue Book and the Red Book,respectively. A third publication, known as the Green Book, describes the recommendations for the use of symbols for physical quantities in association with the IUPAP while a fourth, the Gold Book, contains the definitions of a large number of technical terms used in chemistry. Similar compendia exist for biochemistry the White Book, in association with the IUBMB, analytical chemistry the Orange Book, macromolecular chemistry the Purple Book and clinical chemistry the Silver Book. These "color books" are supplemented by shorter recommendations for specific circumstances that are published

Christine San Gabriel BSN1 on August 17, 2017:

Each compound has their own formulas.This topic taught me how to read,name and write formulas.Every different compound has different component.Chemical equations and formulas are the language of chemistry.

Ronniel Legaspi on August 17, 2017:

LEGASPI, RONNIEL AERON R. BSEEC-3 Knowing the kinds of chemical is very useful to us because chemical is we use daily like the food we ate, like the things we use in our daily life like ballpen, plastic and etc. As a future engineer it is very useful like using cement in building bridge or etc.

Kensanc on August 17, 2017:

Sanciangco,Kenneth Philip H.

BSHM-3

A chemical nomenclature is a set of rules to generate systematic names for chemical compounds.The primary function of chemical nomenclature is to ensure that a spoken or written chemical name leaves no ambiguity concerning which chemical compound the name refers to each chemical name should refer to a single substance. A less important is to ensure that each substance has a single name, although a limited number of alternative names is acceptable in some cases.

Camille San Mateo on August 17, 2017:

SAN MATEO, CAMILLE C.

BSN-1

Chemistry is very useful in our everyday lives. Knowing the language of chemistry which consists of symbols, formulas, and equations makes everything easy like naming compounds. But long before chemists knew the formulas for chemical compounds, they developed a system of nomenclature that gave each compound a unique name. Nomenclature is important because it help us to come up with the name for an object. And knowing the names of those chemicals give us the idea of their uses.

Bryan Pangilinan on August 17, 2017:

Bryan P, Pangilinan

BSHM 4-2

This topic Chemical Nomenclature and Chemical Formulas is indeed important for us. Because without these formulas how will you equate or find the answer of the given equations? there is no need to memorize every formula, familiarizing this would be enough. This is not just for us tourism students but also in other courses. Now, this is important in our field because how will we know the names of the chemicals that we about to handle, also how dangerous can this be. That's why it's that important.

Teddy Gullem on August 17, 2017:

Chemical nomenclature is a systematic rules for naming chemical compounds. It is basically a tool used to shorten the names of the chemical names of elements and compounds. Which is if done right.

Danica Vipinoza on August 16, 2017:

Chemical nomenclature is the term given to the naming of compounds. Chemists use specific rules and "conventions" to name different compounds.

In a chemical equation, the formula represents one mole of a reactant or product. Having connection in teaching, teachers might have diverse students. Different cultures, personalities, and names. Every teacher must know the name of his students and be able them to differentiate. Each name has its own origin and it should be accepted and respected.

Jasper Sierto on August 16, 2017:

Sierto, Jasper L.

BSHM - 3

As far as I know Chemical Nomenclature is the term given to the naming of compounds. Chemists use specific rules and "conventions" to name different compounds. This section is designed to help you review some of those rules and conventions. Oxidation and Reduction. Forming Ionic Compounds.

Javy Paul Gonzales from San Ildefonso Bulacan on August 16, 2017:

GONZALES,JAVY PAUL S.

BSHM 3

Chemical nomenclature is the process of giving unambiguous chemical formulas or chemical names to elements and compounds.When forming compounds, it is important to know something about the way atoms will react with each other. When we are cooking we should know on how much heat is needed to cook the food. Chemical nomenclature is one of the important part we need to study.

RUSSELL BERNARDINO BSTM4 on August 15, 2017:

Chemical Formulas are super useful. They identify the reactants and products in a chemical reaction. Reactants are the starting materials; they're the atoms and molecules that we start with and are always located on the left hand side , There are different type of chemical formula such as molecular formula, empirical formula, and formula unit.

Without getting into the detail of any one of them, chemical formula tells us what elements are in the molecule or chemical compound. It is a representation of the substance on paper.

Jolina Gabriel on August 14, 2017:

Jolina L Gabriel

BsN -1

Chemical Nomenclature, in simple terms, is the proper naming of elements and compounds (acids, salts, bases, and oxides) that makes up chemical equations in chemical reactions. Without symbols for elements, it is then impossible to make chemical formulas for compounds. This naming system is very important for without it we won't know which is which and what is what. In experiments, if the components needed have no labels or names, how could we possibly identify what are we going to add or mix in a chemical solution. This may give rise to confusion and confusion will result to failure and possible lab accidents. That's why knowing each of these names for elements and compounds is significant.

Dave Joshua Villangca on August 14, 2017:

Dave Joshua B. Villangca

BSN-I

Baliuag University

General Chemistry

T, F 7:30-12:00

The periodic table of elements is the heart of chemistry. In this link, I learned that the chemical symbols and chemical equations are the language of chemistry. Compound is made up of two or more elements. Compounds can be classified as acid, base, salts, and oxides. It's an acid if a compound has an "H" as a first letter. It's base if it has OH. It's salts if it has no "H or OH". Lastly, a compound is an Oxide if it has "O". I also learned in this link how to name a compound and how to make it a chemical formula based on its atomic structure and valence in terms of criss-cross method and other procedures or rules. This link truly helps me as a student to understand chemistry more.

As a nurse, it's important to know first the nature of the medicines or how it was formed before we give it to our patients for us to give them the best and excellent service possible.

TORIBIO, PAULINE LOUISE A. on August 14, 2017:

TORIBIO, PAULINE LOUISE A.

BSN I

Naming and classification of compounds are somewhat the basic part of chemistry. As the title says "Chemical Nomenclature and Chemical Formulas", I have learned how to name, read and classify compounds. For just one link I have learned a lot. Why do we have to learn about this? It is simply because, everyday we are using them and not knowing their composition or structure may harm us. We also should learn about them because we have to innovate and make living better.

Gil Calderon on August 14, 2017:

Many compounds exist as molecules. In particular, when nonmetals connect with other nonmetals, the compound typically exists as molecules. Furthermore, in some cases there are many different kinds of molecules that can be formed between any given elements, with all the different molecules having different chemical and physical properties. How do we tell them apart? The answer is a very specific system of naming compounds, called chemical nomenclature. By following the rules of nomenclature, each and every compound has its own unique name, and each name refers to one and only one compound.

Bianca Bernardo on August 10, 2017:

MARUCOT, KATRINA BIANCA BSN1

Chemical Equations, Formulas are the known as the language of chemistry. Having knowledge on how to properly name chemicals are essential to those in the Medical Field as this is the backbone of creating new medicine and innovation to better the lives of us human beings and cure diseases. Not only in medicines, but everything in this world as we know it have their own chemical names and formulas.

Jucel Salvador on February 25, 2017:

Salvador, Jucel Roma M.

BEED-II (Inorganic Chem)

TF/12:30-2:00/CS 105

Nomenclature is the systematic approach to naming chemical compounds. This is only concerned with naming very simple compounds. There are several types of compounds. These are the acids, bases, salts, and oxides. On the other hand, chemical formula is the representation of the composition of compounds. It contains the symbol and formula of elements or radicals and the number of atoms of each element. In writing formulas, we should know the correct symbols of element and radicals. Valence denotes the number of electrons in the outermost energy level while radicals are group of elements which act as one or a single atom. Also, there are rules to be followed in writing formulas. As a future educator, it is important to understand the lesson well and be able to write formulas, balance chemical equations and even calculate the percentage composition of a compound for our future students to learn.

Zipagan on February 22, 2017:

Dhaina Marie B. Zipagan (BAC-II)

A chemical nomenclature is a set of rules to generate systematic names for chemical compounds. Chemists use specific rules and "conventions" to name different compounds. When forming compounds, it is important to know something about the way atoms will react with each other. One of the most important manners in which atoms and/or molecules react with each other is the oxidation/reduction reaction. Oxidation/Reduction reactions are the processes of losing and gaining electrons respectively.

As a mass communication student, we should know how to follow the rules in making article because we offer information and build a relationship with your newsletter subscribers and to give your clients a deeper understanding on a topic.

Maniella de Leon on January 24, 2017:

De Leon, Maniella Assumpta M.

BEED-II BSC206B (Inorganic Chemistry/ TF/ 12:30-2:00/ CS 105)

It is necessary to know the names of the chemicals for it gives us the idea of their uses. Naming chemicals is as important as knowing my future students by name. So, I will be able to record correctly their grades according to their performance.

mariseperez08 on January 23, 2017:

Niña Marise V. Perez

BEED-II

BSC206B (Inorganic Chemistry)

TF-12:30-2:00pm/CS105

Chemical nomenclature is the term given to the naming of compounds. Chemists use specific rules and "conventions" to name different compounds. This section is designed to help you review some of those rules and conventions. The primary function of chemical nomenclature is to ensure that a spoken or written chemical name leaves no ambiguity concerning which chemical compound the name refers to: each chemical name should refer to a single substance. A less important aim is to ensure that each substance has a single name (although a limited number of alternative names is acceptable in some cases). The form of nomenclature used depends on the audience to which it is addressed. As such, no single correct form exists, but rather there are different forms that are more or less appropriate in different circumstances. A common name will often suffice to identify a chemical compound in a particular set of circumstances. However, in a few specific circumstances (such as the construction of large indices), it becomes necessary to ensure that each compound has a unique name.

In discussing chemistry nomenclatures is it necessary to identify the type of compound including stoichiometry and type of constituent atoms. The first separation of importance is to distinguish between inorganic and organic compounds. Unfortunately, this separation is not always clear. even to experienced chemists. Historically (two centuries ago) the definitions were that inorganic compounds were synthesized by geological systems and organic compounds were found in biological systems. The modern definitions argues that organic compounds are any molecule containing carbon and by default this means that inorganic chemistry deals with molecules lacking carbon. The confusion arise when chemists that study carbon based materials like diamond or graphite, but that argument is beyond the scope of this text. The following sections presents the current nomenclature rules for inorganic and organic molecules.

Maria Luz Mendoza on January 23, 2017:

Ma. Luz Mendoza (BEEDII)

The primary function of chemical nomenclature is to ensure that a spoken or written chemical name leaves no ambiguity concerning to what chemical compound the name refers. Each chemical name should refer to a single substance. Today, scientists often refer to chemicals by their common names: for example, water is not often called dihydrogen oxide. However, it is important to be able to recognize and name all chemicals in a standardized way. Molecular compounds are made when two or more elements share electrons in a covalent bond to connect the elements. Typically, non-metals tend to share electrons, make covalent bonds, and thus, form molecular compounds. Having relation to my course it is important to know our students each or one by one as what and who they are.

Jahna Carmella on January 23, 2017:

Jahna Carmella B. Galvez

BEED-II

BSC 206B (Inorganic Chemistry TF 12:30-2:00/CS 105)

chemical nomenclature is a set of rules to generate systematic names for chemical compounds. When forming compounds, it is important to know something about the way atoms will react with each other. One of the most important manners in which atoms and/or molecules react with each other is the oxidation/reduction reaction. Oxidation/Reduction reactions are the processes of losing and gaining electrons respectively; oxidation numbers are assigned to atoms and compounds as a way to tell scientists where the electrons are in a reaction. It is often referred to as the "charge" on the atom or compound. The oxidation number is assigned according to a standard set of rules, knowing the oxidation number of a compound is very important when discussing ionic compounds. Ionic compounds are combinations of positive and negative ions. They are generally formed when nonmetals and metals bond, as a future educator we must remember the names of our student and not give them a name that can embarrass or can humiliate them.

Villaroman on January 22, 2017:

Villaroman Nikki D.C. BEED III

BSC206b (T/F 12:30-2:00/CS 105)

Chemical nomenclature is the term given to the naming of compounds. Chemists use specific rules and "conventions" to name different compounds. The first chemical nomenclature was developed in 1787 by a commission of French chemists under the chairmanship of A. L. Lavoisier. Before that, a substance was named according to arbitrarily chosen criteria, for example, the method of production, the name of the discoverer, or some property.In relation to education we should always remember that students have different learning styles that we should consider for them to reach their maximum learning potential.

JosephineLopez04 on January 21, 2017:

Josephine V. Lopez

BEEd-ll

BSC 206 (Inorganic Chemistry TF 12:30-2:00)

A chemical nomenclature is a set of rules to generate systematic names for chemical compounds. The nomenclature used most frequently worldwide is the one created and developed by the International Union of Pure and Applied Chemistry (IUPAC). Chemical nomenclature consists of different symbols of elements and subscript. The primary function of chemical nomenclature is to ensure that a spoken or written chemical name leaves no ambiguity concerning which chemical compound the name refers to each chemical name should refer to a single substance.

Elize Bantang 14 on January 21, 2017:

Merle, Eliza B.

BEEd-ll

BSC 206 (Inorganic Chemistry TF 12:30-2:00)

Chemical nomenclature is at least as old as the pseudoscience of alchemy, which was able to recognise a limited number of reproducible materials. Chemical formula indicates the relative number of atoms of each element in a substance. It consists of symbols of elements and subscripts. Chemical symbols are shorthand abbreviations for elements. There are several types of compounds, these are the acids, bases, salts, and oxides In writing formulas of compounds there are some basic rules. In relation to my course, it is necessary to know further and to learn more about our future learners' behaviour, family background and how they collaborate other peers and to other people.

Cristina Perez on January 21, 2017:

Perez, Ma. Cristina M. (BEED-II)

Chemical nomenclature is concerned with naming chemical compounds and writing their formulas. A chemical nomenclature is a set of rules to generate systematic names for chemical compounds. A chemical formula is an expression which states the number and type of atoms present in a molecule of a substance. The type of atom is given using element symbols. The number of atoms is indicated by a subscript following the element symbol. Naming compounds using a fixed set of rules is important so that all compounds are recognized globally by the same name to avoid confusion and misunderstanding. Compounds are named so as to distinguish one compound from another. At times the chemical name of a compound is very long and so to communicate better, a common word/name is used instead. Compounds have a common name, a proper name and chemical formulae. A chemical formula clearly shows the composition of a substance. It not only reveals the identity of the constituent elements, but also their fixed ratio by mass. The chemical formula also stands for one molecule of a substance.

In a chemical equation, the formula represents one mole of a reactant or product. Having connection in teaching, teachers might have diverse students. Different cultures, personalities, and names. Every teacher must know the name of his students and be able them to differentiate. Each name has its own origin and it should be accepted and respected.

Carmela Perez on January 21, 2017:

Perez, Ma. Carmela M.

(BEED-II)

BSC 206B (Inorganic Chemistry TF 12:30-2:00/ CS 105)

Chemical nomenclature is the term given to the naming of compounds. Chemists use specific rules and "conventions" to name different compounds while chemical formula is a representation of a substance using symbols for its constituent elements. Knowledge on chemical nomenclature will really have a great impact on us, future teachers because one thing that will help us to be an effective teachers is knowing the name of our students. Knowing how to pronounce them properly and call them with their names. By this, students will feel special and the teacher will be appreciated because they know that their teacher is exerting efforts in memorizing their names. Knowing our students is one of the many factors that will help us succeed in teaching.

Jucel Salvador on January 21, 2017:

Salvador, Jucel Roma M.

BEED-II

BSC 206B (Inorganic Chemistry TF 12:30-2:00/CS 105)

Nomenclature is the systematic approach to naming chemical compounds. This is only concerned with naming very simple compounds. There are several types of compounds. These are the acids, bases, salts, and oxides. On the other hand, chemical formula is the representation of the composition of compounds. It contains the symbol and formula of elements or radicals and the number of atoms of each element. In writing formulas, we should know the correct symbols of element and radicals. Valence denotes the number of electrons in the outermost energy level while radicals are group of elements which act as one or a single atom. Also, there are rules to be followed in writing formulas. As a future educator, it is important to understand the lesson well and be able to write formulas, balance chemical equations and even calculate the percentage composition of a compound for our future students to learn.

Vivianjane Mempin on January 10, 2017:

Vivian Jane M. Mempin

BAC-II

Gen.Chem. (TF/7:30-12:00/CS301)

Chemical Nomenclature, in simple terms, is the proper naming of elements and compounds (acids, salts, bases, and oxides) that makes up chemical equations in chemical reactions. Without symbols for elements, it is then impossible to make chemical formulas for compounds. This naming system is very important for without it we won't know which is which and what is what. In experiments, if the components needed have no labels or names, how could we possibly identify what are we going to add or mix in a chemical solution. This may give rise to confusion and confusion will result to failure and possible lab accidents. That's why knowing each of these names for elements and compounds is significant.

In the field of communication, identification and classification of information is really of great significance. If we don't identify which information came from which or whoever, then it's like palgiarism or lying. We also have remember names of different personalities.

Jole Ymenel Tila from Pulilan, Bulacan on March 09, 2015:

Tila Jole Ymenel F. BUHM

The primary function of chemical nomenclature is to ensure that a spoken or written chemical name leaves no ambiguity concerning which a chemical compound the name refers to, each chemical name should refers to a single substance. The names also conveys some information about the structure or chemistry of a compound. Also important aim is to ensure that each substance has a single name, although a limited number of alternative name is acceptable in some cases.

Paulo Tomas on March 08, 2015:

TOMAS J P BUHM

Knowing the scientific and chemical term of the products we are using in the industry is very important. For we can use a substance we think that is not harmful but it is. It is essential to identify different names and formulas of chemical to avoid hurtful encounter with it.

Fatima Cruz Castro on March 05, 2015:

7 CASTRO F C BUTM 2014

Chemical nomenclature and Chemical formula are so important in our field because this is a set of chemical names. we should know about this specially as a tourism student. and this is a part of chemistry that we need to know.

Zyrine Mae Taruc on March 05, 2015:

Taruc, ZM, BUTM 2014

It is a set or system of names or terms, as those used in a particular science or art, by an individual or community, etc. And it can be apply in tourism industry to named the following equipments that are being used.

Clarenz Maximo on March 05, 2015:

21 MAXIMO, CR BUTM

Chemical formula is an easy way of expressing information about the atoms that constitute a particular chemical compound, and how the relationship between those atoms changes in chemical reactions.

Rad Mesina from Calumpit, Bulacan on March 05, 2015:

23 MESINA, DJ BUHM

name and formulas are part of our daily life. it can also relate to our life which we can used it as a basis to understand how atoms or chemicals form, to know the abbreviation of their names and how it will react if we apply the formulas.

Phoebe Sp on March 05, 2015:

In a chemical reaction, it is important to be precise and also to be balanced. We should be very careful in balancing a chemical reaction so we can have a proper experiment.

jairafulgencio on March 05, 2015:

Fulgencio JM BUTM 2014

A chemical formula is a way of expressing information about the proportions of atoms that constitute a particular chemical compound.

yuriannesantos on March 05, 2015:

35 Santos, YA BUTM 2014

Chemical Formulas are important for us bcs there are chemicals needed to combine in beverages or food so formulas are important for us to know how much chemical is required to be in that specific meal.

28Quizon,CA on March 05, 2015:

Chemical nomeclature is one of the important part we need to study.These are described using the language of chemistry which consists of symbols, formulas and equations

MARCELO, JME BUTM2015 on March 05, 2015:

The formula tells you the correct ratio of each element in the compound. Any questions that involve "how much" will require you to know and use this proper ratio. Combinations of the same elements but in different ratios produce compounds with different properties.

Elli Rose Gabriel on March 05, 2015:

1 BALELA, E.G BUTM 2014

in the field of tourism industry chemical formula is a serious thing to talk about because it may cause a dangerous accident for others if they didn't know the uses of chemicals and it's importance. So we need to be aware of what chemical formula will affect our job in the future.

Melanie Samson on March 05, 2015:

31 SAMSON, MH BUTM2014-2015

I think the importance of this study in my field is to help us identify different types of chemicals that we may encounter into kitchen and other places concerning our course.

Mary Rose Banzon on March 05, 2015:

I think this matter was important in our industry. I have a chemistry subject and this information is important in my learning.

Marife DG. Montejo on March 05, 2015:

Learning about different chemicals is really important in our field for us to identify the chemical we may encounter in the future if we are already working.

Capanas MJ BUHM on March 05, 2015:

Capanas MJ BUHM

Chemical nomeclature is one of the important part we eed to study. These are describe equation these will hepl preparing foods.

Agnes Sato from Baliuag, Bulacan on March 04, 2015:

36 SATO, MA BUTM

It is very important in my field to have this chemical nomenclature and chemical formulas if we are having our jobs. To identify its field and to easily define its components that is sum up there.

37ValerioMMBUHM on March 04, 2015:

A chemical nomenclature is a set of rules to generate systematic names for chemical compounds.

Julien Villanueva on March 04, 2015:

Villanueva Julien / BSHM 2014 -2015

Knowledge of different chemicals that we might be using in the future is really important for us. With this knowledge we could avoid doing something wrong with the chemicals and use it more efficiently.

john angelo oretga bshm2 on March 04, 2015:

it was very important for me as an hm student because when it comes to our industry, it was very much needed to know the different chemicals we are using.

Jan Carlo Buencamino from Banga 2nd Plaridel Bulacan on March 04, 2015:

Chemical nomenclature is very important to easily identify the chemicals / ingredients

John Andrew Cabrera on March 04, 2015:

If we are knowledgeable about this we can easily identify the possible effect of the chemicals to each other.

John Andrew Cabrera on March 04, 2015:

If we are knowledgeable about this we can easily identify the possible effect of the chemicals to each other.

John Carlo Viola on March 04, 2015:

The chemical nomenclature is also helpful in hospitality management. Through chemical nomenclature we know the names of the chemicals to be used before we use. We know how the chemicals we use are harmful or not.

Glenric Samaniego on March 04, 2015:

Chemical nomenclature is the term given to the naming of compounds. Chemists use specific rules and "conventions" to name different compounds. This section is designed to help you review some of those rules and conventions. You have to be familiar with every chemical you are about to use.

Eimon Paolo on March 04, 2015:

It is important to know formulas and equation because there are so many bad things that will happen if we don't know the right formula or combinations of what we do.

simplyariannejoy on March 04, 2015:

17 Flores, AJ BUHM

Chemical Nomenclature is studying of symbol and names of formula like periodic table is condider of all of number and names of symbol. examples. hyrogen name of formila, 1 of atomic number and symbol is H. and connect of course in tourism management because learn of symbol of languages from about country like hydrogen oxygen and carbon and connect of the people from the in airport and airplane.

winnie rose inoncillo aquino from San Rafael, Bulacan on March 04, 2015:

2 Aquino, WR BUHM 2014

To know and to understand the Chemical Nomenclature and Chemical Formulas is very important because to be able to perform any experiments is you should know what kind of materials you are using for you to get the correct results and correct answers.

renzocauzon on March 04, 2015:

It is important for us HM students to study the different chemistry languages like symbols, formulas and equation. It is important in our field because how will we know the names of the chemicals that we about to handle, also how dangerous can this be. So let us study this because it is important.

simplyariannejoy on March 04, 2015:

17 Flores, AJ BUHM

Chemical Nomenclature is studying of symbol and names of formula like periodic table is condider of all of number and names of symbol. examples. hyrogen name of formila, 1 of atomic number and symbol is H. and connect of course in tourism management because learn of symbol of languages from about country like hydrogen oxygen and carbon and connect of the people from the in airport and airplane. This topic Chemical Nomenclature and Chemical Formulas is indeed important for us. Because without these formulas how will you equate or find the answer of the given equations? there is no need to memorize every formula, familiarizing this would be enough. This is not just for us tourism students but also in other courses. Now, this is important in our field because how will we know the names of the chemicals that we about to handle, also how dangerous can this be. That's why it's that important.

Richmond V from Bustos, Bulacan on March 04, 2015:

Knowing the names and different combination of chemicals is very important because it is one of the basic thing in chemistry and it is always needed to know to right name of chemicals to use it correctly.

Patricia Rivera on March 04, 2015:

Chemical nomenclature is one of the important part we need to study.These are described using the language of chemistry which consists of symbols, formulas and equations.these will help us in preparing food. Which is really can be applied in Tourism Management.

Cess Capulong on March 03, 2015:

Chemical nomenclature is the study of symbols and things related to numbers. Binary Covalent Compounds, Binary Ionic Compounds, Ionic Compounds with Polyatomic Ion(s), and Ionic Compounds with Polyatomic Ion(s) are some of the formulas we can apply to it.

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