Glossary Terms

CHEMICAL REACTION

CHEMICAL REACTION [keh-muh-kl, ree-ak-shn]

What it is: When two or more molecules interact to create a new and different molecule. Therefore a chemical change that occurs when two or more substances combine to form a new substance. An example would be when two molecules of hydrogen (H2) combine with one molecule of oxygen (O2), they form two molecules of water (H20).

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