Stoichiometry

4. Any reactant that is used up first in a chemical reaction; it determines the amount of product that can be formed in the reaction.
5. amount of substance
7. A reagent present in a quantity that is more than sufficient to react with a limiting reagent; any reactant that remains after the limiting reagent is used up in a chemical reaction.
9. The smallest unit into which a substance can be broken down without a change in composition, usually atoms, molecules, or ions
12. Hypothesis Equal volumes of gases at the same temperature and pressure contain equal numbers of particles.
13. portion of chemistry involving the calculation of quantities of substances involved in chemical reactions (and numerical relationships in chemical reactions)

1. a process in which the atoms of one or more substances are rearranged to form different substances
2. A conversion factor derived from the coefficients of a balanced chemical equation interpreted in terms of moles
3. Standard Temperature & Pressure
6. Mass the mass of one mole of a substance
8. the starting substance in a chemical reaction
10. The amount of product that actually forms when the reaction is carried out in the laboratory
11. The percent by mass of each element in a compound.