Chemical reactions
Name: ______________________ Date: ____________
Write the letter of the matching item on the line next to each number.
1. Chemical
A. A process in which a substance reacts with oxygen to give heat and light
2. PH
B. Substance used in or made by chemistry
3. Hydroxide
C. A chemical reaction in which an acid and a base interact with the formation of a salt
4. Decomposition
D. A number or ratio derived from a series of observed facts
5. Sulfate
E. A liquid substance capable of dissolving other substances
6. Endothermic
F. Any of various water-soluble compounds having a sour taste and capable of turning litmus red
7. Combustion
G. The logarithm of the reciprocal of hydrogen-ion concentration in gram atoms per liter
8. Exothermic
H. Occurring or formed with the liberation of heat
9. Neutralisation
I. Bottom part something stands on; a safe spot in baseball
10. Acid
J. A compound of an oxide with water
11. Base
K. The analysis of a vector field
12. Solvent
L. Occurring or formed with absorption of heat
13. Indicator
M. A salt or ester of sulphuric acid