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| Basic unit of a chemical element. |
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| A symbolic representation of a chemical reaction using symbols and formulas in which reactants form products. |
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| A set of chemical symbols showing the elements present in a compound and the relative proportions of atoms. |
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| A big numerical or constant quantity placed before element symbols and are used to multiply the variables. Example would be the number four in the compound 4KOH. |
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| Chemically combined substance of two or more separate elements. |
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| A pure substance made entirely of one type of atom. |
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| The newly made substance on the right side of a chemical reaction. |
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| Substance on the left side of a chemical reaction that are combined together and undergoes a change. |
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| The small number in a chemical reaction that represent the number of atoms. The number two in H2O is the example. |
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| Chemical reaction in which substances break down. |
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| Chemical reaction in which substances are put together to make a final product. |
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| Chemical reaction in which one or more substances are switch leaving a single substance by it self. |
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| Chemical reaction in which two or more paired substance compounds are switched in the product. |
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| An equation that contains the same amount of atoms for all of the elements on both the reactant side and product side. |
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| A process that involves rearrangement of the molecular or ionic structure of a substance. |
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| Creation of a solid from a solution during chemical reactions. |
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