Chemistry Review

3. A change in matter in which new materials with new chemical and physical properties are formed.
5. The total pressure in a gas mixture is equal to the sum of the partial pressures of the individual gases.
10. A substance that increases the concentration of hydroxide ions in an aqueous solution.
12. A change that alters a substance without changing its composition.
15. One element trades places with another element.
17. One reactant forms several products.
18. The pressure of a given mass of gas is directly proportional with the Kelvin temperature when volume is held constant.
20. The species produced when a base accepts a hydrogen ion from an acid.

1. Two elements trade places with one another.
2. The process of determining the concentration of an unknown acid or base.
4. The species that results when an acid donates a hydrogen ion to a base.
6. The rate of effusion for a gas is inversely proportional to the square root of its molar mass.
7. A compound/element that combines with oxygen to form oxide and sometimes water.
8. The volume of a gas is inversely proportional to the pressure if temperature is held constant.
9. A PH level between 7 and 14.
11. Several reactants make one product.
13. A PH level between 0 and 7.
14. The volume of a gas at constant pressure is directly proportional to the Kelvin temperature.
16. A PH level of 7.
19. A substance that increases the concentration of hydrogen ions in an aqueous solution.