Final Exam Review 1

4. oxygen combines with a substance and releases energy in the form of heat and light.
6. specifies the actual number of atoms of each element in one molecule or formula unit of the substance.
7. referred to as ideal gas constant.
10. a chemical reaction in which two or more substances react to produce a single product.
14. a formula that shows the smallest whole-number ratio of the elements of a compound, and may or may not be the same as the actual molecular formula.
17. is a statement that uses chemical formulas to show the identities and relative amounts of the substances involved in a chemical reaction.
20. the study of quantitative relationships between the amounts of reactants used and products formed by a chemical reaction.
21. which are the substances formed during the reaction.

1. process by which the atoms of one or more substances are rearranged to form different substances.
2. is one in which a single compound breaks down into two or more elements or new compounds.
3. left over reactants
5. the mass in grams of one mole of any pure substance.
8. states that the volume of a given amount of a gas held at constant temperature varies inversely with the pressure.
9. starting substances
10. the substance dissolved in a solution.
11. states that the volume of a given mass of a gas is directly proportional to its kelvin temperature.
12. is the SI base unit used to measure the amount of a substance.
13. limits the extent of the reaction and, thereby, determines the amount of product.
15. a solid produced during a chemical reaction in a solution.
16. a ratio between the numbers of moles of any two substances in a balanced equation.
18. 6.02 x 1023
19. a substance dissolved in a solution.