| A | B |
| reactants | a substance that undergoes change in a chemical reaction |
| products | new substance formed as a result of a chemical reaction |
| chemical equation | a representation of a chemical reaction in which the reactants and products are expressed formulas |
| coefficients | number that appear before a formula in a chemical equation to show the relative proportion of each reactant and product |
| mole | an amount of a substance that contains approximately 6.02*10^23 particles of a substance |
| molar mass | the mass of one mole of a substance |
| syntesis reaction | a chemical reaction in which two or more substances react to form a single substance |
| decomposition | a chemical reaction in which a compund breaks down into two or more simpler substances |
| single-replacement reaction | a chemical reaction in which one element take the place of another element in a compound |
| double-replacement reaction | a chemical reaction in which two compounds exchange positive ions and form two new compounds |
| combustion reaction | a chemical reaction in which a substance reacts rapidly with oxygen, often producing heat and light |
| oxidation-reduction reaction | a chemical reaction in which electrons are transferred from one reaction to another |
| equilibrium | a state in which the forward and reverse paths of a physical or chemical change take place at the same rate |
| reversible reaction | a chemical reaction in which the conversion of reactants into products and the conversion of products into reactants happens at the same time |