Stoichiometry

3. A unit to measure the amount of a substance. One mole of a substance contains Avogadro's number of particles.
7. equation A representation of a chemical reaction, showing the reactants on the left side and the products on the right side, with an arrow indicating the direction of the reaction.
8. The calculations of products and reactants in a chemical reaction
11. Numbers placed in front of chemical formulas in a balanced equation to tell the relative number of moles of each substance involved in the reaction.
13. equation An equation representing a chemical reaction where the number of atoms of each element is the same on both sides of the equation.

1. The substances that are formed as a result of a chemical reaction between reactants.
2. reactant The reactant that is consumed in a chemical reaction, limiting the amount of product formed.
4. ratio The ratio of the number of moles of one substance to the number of moles of another substance in a balanced equation.
5. A number written to the right and below an element's symbol in a chemical formula, indicating the number of atoms of that element in a molecule.
6. mass The mass of one mole of a substance, in grams per mole (g/mol).
7. reaction A process in which one or more substances are converted into different substances through the ordering of atoms.
9. ratio The ratio of the masses of one substance to the masses of another substance in the chemical reaction.
10. The substances that go through a chemical reaction to form products.
12. reactant The reactant that is not completely consumed in a chemical reaction because there is more of it than required to react with the limiting reactant.
14. number The number of particles (atoms, molecules, ions, etc.) in one mole of a substance. 6.022×10^23