2. THIS IS ™

3. 100 200 300 400 500 Review problems Colligative properties pH Titrations and reactions Electro chemisty Acids and Bases ™

4. Why do elements in a group have similar chemical characteristics A 100

5. Because they all have the same number of valence electrons A 100

6. What is the difference between ionic and covalent bonds in terms of electrons? A 200

7. Covalent Bonds – Electrons are shared between atoms Ionic Bonds – Electrons are transferred from one atom to another. A 200

8. What is an isotope? A 300

9. An atom that has different amounts of neutrons. A 300

10. Define endothermic and exothermic reactions. A 400

11. Exothermic reactions are reactions where energy is a released, ∆H is negative and reactions generally feel warm. Endothermic reactions are reactions where energy is absorbed, ∆H is positive and reactions generally feel cold. A 400

12. How many protons and neutrons are in an element of Carbon-14? A 500

13. 6 Protons; 8 neutrons A 500

14. What are the three colligative properties? B 100

15. Vapor Pressure Decreasing Boiling Point Elevation Freezing Point Depression B 100

16. Which will lower the freezing point the most and why? NaCl or C 6 H 12 O 6 B 200

17. NaCl, because it dissociates into two particles and will hold solvent particles in the liquid more effectively that molecular substances that do not dissociate. B 200

18. Name two instances where colligative properties are used in everyday life. B 300

19. Road Salt Anti-Freeze in cars Other responses will be judged by Ms. Jensen

20. What is the freezing point and boiling point of a 0.5 m aqueous MgSO 4 solution? B 400

21. Freezing point: -1.86 degrees Boiling point: 100.5 degrees B 400

22. What is the boiling point of a solution made from 20.0 g of CO 2 in 400 g of water? B 500

23. Boiling point: 100.5 degrees B 500

24. Find the pH if [H+] = 1 x 10 -9 M And tell if the solution is acidic or basic C 100

25. 9; basic

26. C 200 What is the pH if [OH-] = 1 x 10 -6 M and tell if it is acidic or basic

27. 8; basic C 200

28. Find the pH of a 2.6 x 10 -3 M HCl solution and tell if it is acidic or basic C 300

29. 2.6 ; acidic C 300

30. DAILY DOUBLE C 400 DAILY DOUBLE Place A Wager

31. Find the pH a 6.7 x 10 -2 Ca(OH) 2 solution and tell if it is acidic or basic C 400

32. 13.1; basic C 400

33. If a solution has a pH of 6.7, find the hydrogen ion concentration. Is this acidic or basic? C 500

34. 2 x 10 -7 ; acidic C 500

35. What is a titration? D 100

36. When an acid and a base is added together until they are equivalent to find an unknown concentration D 100

37. What is the molarity of an HCl solution if 30 mL is needed to neutralize 20 mL of a 0.45 M NaOH solution D 200

38. 0.3 M D 200

39. What is the molarity of an H 3 PO 4 solution if 20 mL is completely titrated by 45 mL of a 0.14 M NaOH solution? D 300

40. 0.105 M D 300

41. Write a balanced reaction when magnesium hydroxide and nitric acid react D 400

42. Mg(OH) 2 +2HNO 3  Mg(NO 3 ) 2 + 2H 2 O D 400

43. Write a balanced reaction when sodium reacts with hydrobromic acid D 500

44. 2Na +2 HBr  2NaBr + H 2. D 500

45. Is this reaction a spontaneous redox reaction? Mg + Sn 2+  Mg 2+ + Sn E 100

46. Yes, Sn is reduced and is above magnesium and on reduction potential chart E 100

47. How will electrons flow in a Sr/Sr 2+ //Zn/Zn 2+ electrochemical cell? E 200

48. Zinc E 200

49. What are the oxidation numbers in NO 3 - E 300

50. +5, -2 E 300

51. What is oxidation? E 400

52. How many volts can a Pb/Pb 2+ //Zn/Zn 2+ cell produce and what neutral metal is made? E 500

53. 0.63 V; Pb E 500

54. F 100 What makes a substance an acid?

55. The ability to dissociate into H+ ions. F 100

56. Name the following and tell if it is a strong or weak acid or base HClO 2 F 200

57. Chlorous acid; weak acid F 200

58. What is the [OH - ] in a neutral solution? F 300

59. 1 x10 -7 F 300

60. Name the following and tell if it is a weak or strong acid or base Fe(OH) 3 F 400

61. Iron (III) hydroxide Weak base F 400

62. Which of the following would be the best conductor of electricity and why? HNO 3, H 2 S, Mg(OH) 2 F 500

63. HNO 3 ; because it is a strong acid so it ionizes completely putting a lot of ions in solution F 500

64. The Final Jeopardy Category is: Acids and bases Click on screen to begin

65. Which solution will have the most hydrogen ion? pH = 9 pH= 2 Click on screen to continue

66. pH = 2 Click on screen to continue

67. Thank You for Playing Jeopardy!