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  • Gas is one of the three forms of matter. Every known substance is either a solid, liquid or a gas. These forms differ in the way they fill space and change shape. A gas, such as air has neither a fixed shape nor a fixed volume and has weight.

    The Theories and Behavior of Gas

    The Theories and Behavior of Gas

    by Liwayway Memije-Cruz158

  • There are many deadly things in the world that can easily bring our lives to an end. But what are the deadliest? Did you know a Japanese delicacy actually contains the 5th deadliest poison known?

    5 Deadliest Poisons Known to Man and Their Effects

    5 Deadliest Poisons Known to Man and Their Effects

    by George Lancaster1

  • 5 properties of water: cohesion, high specific heat, high heat of vaporization, lower density of ice, and high polarity.

    5 Properties of Water

    5 Properties of Water

    by livingconsciously96

  • Having trouble with naming chemical compounds? Perhaps you're taking a General Chemistry class in college. I take you through naming step-by-step with discussion and examples!

    Steps to Naming Ionic and Covalent Compounds

    Steps to Naming Ionic and Covalent Compounds

    by phriot12

  • Teach kids about mass, volume and density by doing this simple experiment with sugar and water. It's the easiest way to make rainbow water.

    Sugar Rainbow Density Experiment

    Sugar Rainbow Density Experiment

    by Kathy Hull21

  • This article aims to answer some tricky chemistry questions I have come across in my experience as a high school teacher: What is an acid? How do fireworks change color? How do glow sticks work?

    Top Ten Chemistry Questions and Answers

    Top Ten Chemistry Questions and Answers

    by Rhys Baker18

  • It is truly amazing to think about how water has so many unique and amazing properties. But just what is it about water that makes it so versatile, useful, essential, and unique?

    The Amazing and Remarkable Properties of Water

    The Amazing and Remarkable Properties of Water

    by CWanamaker8

  • Recycling plastic is essential for the well-being of our planet. Before plastic can be recycled, it must be sorted and separated, either at source or at a recycling facility. This article gives simple guidelines to easily identify different types of plastic in line with the international plastic identification code.

    How to Identify Different Types of Plastic

    How to Identify Different Types of Plastic

    by grumpiornot6

  • Electrolysis is the process in which a chemical reaction is started with electricity (Andersen). This is usually done with liquids and especially with ions dissolved in water. Electrolysis is used widely in today's industry and is a part of the...

    Electrolysis: The Way of the Future

    Electrolysis: The Way of the Future

    by Tinmar3

  • What is fractional distillation? How does it work Why is crude oil both important and useless? What is cracking? What is supply and demand? Why do long hydrocarbons have higher boiling points? Modern living is built on crude oil - this hub explains how crude oil is changed into the things we use everyday, from petrol to plastic!

    Making Crude Oil Useful—Fractional Distillation and Cracking

    Making Crude Oil Useful—Fractional Distillation and Cracking

    by Rhys Baker12

  • REMPI-TOF stands for Resonance Enhanced Multi-Photon Ionization - Time-of-Flight. It is a highly sensitive spectroscopy method for investigation of electron excitation.

    Spectroscopy Techniques: REMPI-TOF

    Spectroscopy Techniques: REMPI-TOF

    by Levictus Marcus Saarith0

  • Because caffeine is a substance used by the young and old in every country and on every continent its effects affect billions. In order to better understand these effects we must examine first where and why caffeine exists. We must observe its impact in nature on animals, plants and the environment that reveal the potential ways in which it can change, even destroy, life. Then, we will look at how it relates specifically to us, at the many pathways it impacts in our bodies once we ingest it, a

    Can caffeine kill? How it impacts animals, plants, and the environment.

    Can caffeine kill? How it impacts animals, plants, and the environment.

    by Schatzie Speaks20

  • A hydrate is a compound that absorbs water molecules and incorporates them into its structure. Inorganic, organic, and gas hydrates exist. The latter may become an important energy source.

    What Is a Hydrate (Chemistry)?

    What Is a Hydrate (Chemistry)?

    by Linda Crampton29

  • As a teacher, particles are one of the first topics I teach pupils upon entering High School. This hub investigates the weird and wonderful world of particles. How do you draw particle diagrams? How many states of matter are there? What is Plasma? What is absolute zero?

    What is the Particle Model - A Guide to Solids, Liquids and Gases

    What is the Particle Model - A Guide to Solids, Liquids and Gases

    by Rhys Baker16

  • If you're worried about the dangers of chemical fires, and are curious as to how they start and how to douse them, come take a look at this article!

    Causes of Chemical Fires

    Causes of Chemical Fires

    by Btryon864

  • A redox reaction is a reaction that involves both oxidation (the loss of electrons) and reduction (the gain of electrons). In order to identify whether a reaction is redox or not, you can write separate half equations that show how electrons are...

    AS Chemistry - Redox Reactions and Group 2 Elements

    AS Chemistry - Redox Reactions and Group 2 Elements

    by Anthropophobia3

  • Recent advancements in the field of food processing and packaging have been focused on improving the quality and product shelf life. Edible packaging film is one such advancements that can meet many of the current problems. This article gives you the basic idea about edible films and coatings.

    Edible Films: Eat Your Food With the Wrappers On!

    Edible Films: Eat Your Food With the Wrappers On!

    by Bhavana0

  • Chemical reactions take place at the molecular level, when the atoms and molecules of the things you start with (reactants) turn into something new (products). All chemical reactions can be split generally into six different categories: ...

    Types of Chemical Reactions

    Types of Chemical Reactions

    by dosters3

  • Chemistry can be a very difficult subject to grasp, but is essential for understanding how the world around us truly works. To truly understand Chemistry, one must start with the basics.

    Chemistry in a Nutshell

    Chemistry in a Nutshell

    by Jacob Rittenour0

  • If all the elements are arranged in the order of their atomic weights, a periodic repetition of properties is obtained. This is expressed by the law of periodicity.— Dmitry Ivanovich Mendeleev

    The Wonders of the Periodic Table

    The Wonders of the Periodic Table

    by Liwayway Memije-Cruz155

  • Caffeine isn't a simple additive to your morning drink, it is in fact a psychoactive drug. Here is a brief understanding of the course and actions it takes once it enters your system.

    The Course of Caffeine

    The Course of Caffeine

    by Kristina0

  • The reactions of matter whether occurring in natural processes or in the laboratories can be interpreted using another language of chemistry – the equation. A chemical reaction transforms one or more substances into a set of different substances. The substances that enter into a chemical reaction are called reactants and the substances formed are the products.

    Chemical Reactions and Chemical Equations

    Chemical Reactions and Chemical Equations

    by Liwayway Memije-Cruz51

  • Barium is an elusive element with not many industrial uses when compared with other metals such as aluminum. However, from a medical drink to rat poison, it would be inaccurate for one to say it didn't have an interesting array of applications.

    Common Uses of Barium

    Common Uses of Barium

    by Steven Pearson16

  • A look at the active ingredients in Clorox wipes and Clorox Clean-up and a description of how they work on a scientific level.

    The Science Behind Household Cleaners

    The Science Behind Household Cleaners

    by Leah Kennedy-Jangraw6

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