Matching Pairs The Mole Matching GameOnline version Match the concepts related to 'The Mole' story and its characters in this fun game! by Globoi Ej 1 Mole ration 2 Reactants 3 Avogadro’s number 4 Percent composition 5 Stoichiometry 6 Limiting reagent 7 Products 8 Excess reagent ratio between the amount of moles of compounds in a chemical reaction percentage of each element that makes up a specific compound reactant that’s not used up in a reaction the determination of proportions which elements react with one another what is formed from a chemical reaction 6.02x10^23 a substance that undergoes change during a reaction reactant that get used up in a chemical reaction