Across
- 3. speeds up rate of reaction
- 6. how acidic or basic a substance is
- 7. basic unit of matter
- 9. carbon, hydrogen, oxygen, and nitrogen
- 10. "weak acid"
- 11. between molecules
- 12. fats
- 13. biological catalyst
Down
- 1. "water loving"
- 2. "building block"
- 3. attraction between same substance molecules
- 4. coiled structure
- 5. releases OH- ions in a solution
- 8. ability to move matter