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a statement using chemical formulas to describe the identities and relative amounts of the reactants and products involved in the chemical reaction
the process by which the atoms of one or more substances are rearranged to form different substances; occurrence can be indicated by changes in temperature, color, odor, and physical state
in a chemical equation, the number written in front of a reactant or product; tells the smallest number of particles in the substance involved in the reaction
a chemical reaction that occurs when a substance reacts with oxygen, releasing energy in the form of heat and light
a chemical reaction in which one substance breaks down into two or more elements or new compounds
a chemical reaction that involves the exchange of positive ions between two compounds and produces either a precipitate, a gas, or water
a chemical reaction that occurs when the atoms of one element replace the atoms of another element in a compound
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