Across
- 3. and element that exist in more than 2 forms
- 7. process of splitting something into fragments with the addition of water
- 8. chemical reaction that absorbs energy
- 10. attraction between a hydrogen atom and another
- 12. made of hydrogen, oxygen, nitrogen, carbon, and phosphorus
- 16. known as "water fearing"
- 17. chemical reaction that release anergy
- 18. process of using energy to create a large molecules from smaller molecules
- 20. all chemical reactions within an organism to maintain life
Down
- 1. made of carbon, hydrogen and oxygen
- 2. made of nitrogen, carbon, hydrogen, oxygen
- 4. molecules that combine from proteins
- 5. same element with different number of neutrons in them
- 6. known as "water loving
- 9. attraction of molecules to the same substance
- 11. made of carbon and hydrogen
- 13. process of releasing energy to break large molecules into smaller molecules
- 14. a substance which a enzyme acts during a chemical reaction
- 15. molecule that transports chemical energy for metabolism
- 19. attraction of different molecules of different substance