| A | B |
| reactants | the starting materials in a chemical reaction |
| mole ratio | a conversion factor derived from the coefficients of a balanced chemical equation interpreted in terms of moles |
| theoretical yield | the maximum amount of product that could be formed in a reaction |
| mole | the amount of a substance that contains 6.02 x 10^23 representative particles of that substance |
| limiting reagent | the substance completely used up in a chemical reaction |
| percent yield | the ratio of how much product is produced compared to how much is expected, expressed as a percentage |
| stoichiometry | the calculations of quantities in a chemical reaction |
| actual yield | the actual amount of product in a chemical reaction |
| excess reagent | the substance left over after a reaction takes place |
| mass-mass calculation | a stoichiometric computation in which the mass of products is determined from the given mass of reactants |