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2. May kill fish or other organisms.

3. What is acid rain?

4. Used to preserve food.

5. What is sodium nitrate?

6. Occurs when acids and bases react.

7. What is a neutralization reaction?

8. Composed of amino acids.

9. What are proteins?

10. Include fats, oils and waves.

11. What are lipids?

12. Include sugars, starches and fiber.

13. What is carbohydrates?

14. Sometimes called the blueprints of life.

15. What is nucleic acids?

16. Brittleness and high melting points are two properties of this.

17. What are ionic compounds?

18. A compound that rarely dissolves in water.

19. What are Covalent compounds?

20. A substance that has a sour taste and produces hydrogen gas when it reacts with some metals.

21. What is an acid?

22. Has a bitter taste and a slippery feel.

23. What is a base?

24. If almost all the molecules of an acid break apart when dissolved in water, the acid is considered this.

25. What is a strong acid?

26. A substance that is rated 7 on the pH scale is considered this.

27. What is neutral?

28. Biochemicals composed of one or more simple sugar molecules are called this.

29. What are carbohydrates?

30. When an acid and a base neutralize each other this is what remains.

31. What is water and salt?

32. A type of hydrocarbon that has a double and triple bond between the carbons is called this.

33. What is a unsaturated hydrocarbon?

34. Over 90% of compounds are this type.

35. What are organic compounds?

36. A chemical compound formed by the sharing of electrons.

37. What is a covalent compound?

38. An ionic compound formed from the positive ion of a base and the negative ion of an acid.

39. What is a salt?

40. The force of attraction that holds atoms or ions together.

41. What is a chemical bond?

42. A type of biochemical that does not dissolve in water.

43. What is a lipid?

44. An organic compound that contains only carbon and hydrogen.

45. What is a hydrocarbon?

46. A compound that can change color depending on the pH of the solution.

47. What is an indicator?

48. An organic compound that carries genetic information.

49. What is a nucleic acid?

50. A value that is used to express the acidity or basicity (alkalinity) of a system.

51. What is pH?