The Chemistry Book

Matter is anything that has mass and volume is matter. ^[1]

Pure Substances

According to Linus Pauling, substances are "homogeneous species of matter with reasonably definite chemical composition." Substances only containing the same item are called pure substances. The two types are elements and compounds.

Mixtures

Mixtures are substances made by combining two or more substances without a chemical reaction occurring. Mixtures are everywhere around us. The two types of mixtures are homogeneous and heterogeneous.

Further Reading

• Types of Matter
• Classification of Matter
• Interactive Practice Problems

References

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Periodic Table Elements Balancing chemical equations Scientific Method History of Chemistry Math Skills Chemical Bonds Polyatomics Bohr Model	Molality Learning chemistry Nuclear decay Photoelectric effect Acids Solute Specific heat Catalyst Duet rule Octet rule	Henry Moseley Jean Baptiste Perrin Evangelista Torricelli Antoine Lavoisier Clemens Winkler Henri Becquerel Friedrich Wöhler Henri Louis Le Chatelier Josiah Willard Gibbs Benjamin Thompson

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