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aqueous solution

a solution in which the solvent is water

chemical equation

a statement using chemical formulas to describe the identities and relative amounts of the reactants and products involved in the chemical reaction

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

combustion reaction

a chemical reaction that occurs when a substance reacts with oxygen, releasing energy in the form of heat and light

decomposition reaction

a chemical reaction in which one substance breaks down into two or more elements or new compounds

double-replacement reaction

a chemical reaction that involves the exchange of positive ions between two compounds and produces either a precipitate, a gas, or water


a solid produced during a chemical reaction in a solution


a substance formed during a chemical reaction


the starting substance in a chemical reaction

single-replacement reaction

a chemical reaction that occurs when the atoms of one element replace the atoms of another element in a compound


a substance dissolved in a solution


the substance that dissolves a solute to form a solution

synthesis reaction

a chemical reaction in which two or more substances react to yield a single product

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