Across
- 1. when cations and anions combine
- 6. conversion of a substance from the liquid or solid phase into a gas
- 10. a natural component of the air and apart of the carbon cycle
- 13. the breaking of dead, organic matter
- 14. the reaction of an acid and a base
- 15. a positively charged ion
Down
- 2. a joining or merging of different parts or qualities
- 3. is any hydrogen containing substance that can donate a proton
- 4. a substance whose atoms all have the same atomic number or number of protons
- 5. a negatively charged ion
- 7. occurs as a result of diffusion down a concentration gradient
- 8. the amount of living matter
- 9. one phase of matter in which a substance exist and particles move freely
- 11. the process that occurs when atoms or groups of atoms lose electrons
- 12. starting a fire