Mole

2. The reactant that is present in greater amount than is necessary for a reaction to occur.
3. A number written below and to the right of a chemical symbol in a chemical formula, indicating the number of atoms of that element in a molecule.
7. The reactant that is completely consumed in a reaction and determines the amount of product that can be formed.
12. Italian scientist who is credited with introducing the concept of the mole.
13. The process of changing from one unit of measurement to another.
14. A number in front of a chemical formula that indicates the number of molecules or atoms involved in a reaction.
15. The study of matter and the changes it undergoes.
16. A molecule made up of hydrogen and water with a molar mass of 18.02 g/mol.
17. A set of symbols and numbers used to represent a molecule or compound.
18. The amount of product obtained in a reaction.

1. A type of reaction that breaks a compound down into smaller components.
4. A way of expressing a quantity as a fraction of 100.
5. Has a molar mass of 16.00 g/mol.
6. The substances that are produced in a chemical reaction.
8. The unit of mass commonly used in chemistry.
9. 6.02x10^23
10. The substances that participate in a chemical reaction.
11. The branch of chemistry that deals with the calculation of quantities of substances involved in chemical reactions.