1. Question 1 What are the two half reactions that show how many electrons are gained or lost by each species in the reaction: Ni 2+ (aq) + Mg(s)  Ni(s) + Mg 2+ (aq)? A)Ni 2+ (aq) + e –  Ni(s) and Mg(s)  Mg 2+ (aq) + e – B)Ni 2+ (aq) + 2 e –  Ni(s) and Mg(s)  Mg 2+ (aq) + 2 e – C)Ni 2+ (aq)  Ni(s) + 2 e – and Mg(s) + 2 e –  Mg 2+ (aq) D)Ni 2+ (aq)  Ni(s) + e – and Mg(s) + e –  Mg 2+ (aq) E)Ni 2+ (aq) + 2 e –  Ni(s) and Mg(s) + 2 e –  Mg 2+ (aq)

2. Question 1 What are the two half reactions that show how many electrons are gained or lost by each species in the reaction: Ni 2+ (aq) + Mg(s)  Ni(s) + Mg 2+ (aq)? A)Ni 2+ (aq) + e –  Ni(s) and Mg(s)  Mg 2+ (aq) + e – B)Ni 2+ (aq) + 2 e –  Ni(s) and Mg(s)  Mg 2+ (aq) + 2 e – C)Ni 2+ (aq)  Ni(s) + 2 e – and Mg(s) + 2 e –  Mg 2+ (aq) D)Ni 2+ (aq)  Ni(s) + e – and Mg(s) + e –  Mg 2+ (aq) E)Ni 2+ (aq) + 2 e –  Ni(s) and Mg(s) + 2 e –  Mg 2+ (aq)

3. Question 2 A compound that gains electrons while causing another compound to be oxidized is called a(n) _____.

4. Question 2 A compound that gains electrons while causing another compound to be oxidized is called a(n) _____. OXIDIZING AGENT

5. Question 3 When pressure decreases, in which direction does the equilibrium shift? A)The equilibrium shifts to the side with fewer moles of gas. B)The equilibrium shifts to the side with more moles of gas. C)The equilibrium does not shift. D)The equilibrium shifts always shifts to the right. E)The equilibrium shifts always shifts to the left.

6. Question 3 When pressure decreases, in which direction does the equilibrium shift? A)The equilibrium shifts to the side with fewer moles of gas. B)The equilibrium shifts to the side with more moles of gas. C)The equilibrium does not shift. D)The equilibrium shifts always shifts to the right. E)The equilibrium shifts always shifts to the left.

7. Question 4 The definition of an Arrhenius acid is A)a compound that contains hydroxide and dissolves in water to form – OH. B)a compound that is a proton donor. C)a compound that is a proton acceptor. D)a compound that contains a hydrogen atom and dissolves in water to form a hydrogen ion, H +.

8. Question 4 The definition of an Arrhenius acid is A)a compound that contains hydroxide and dissolves in water to form – OH. B)a compound that is a proton donor. C)a compound that is a proton acceptor. D)a compound that contains a hydrogen atom and dissolves in water to form a hydrogen ion, H +.

9. Question 5 The [H 3 O + ] in a cabernet sauvignon wine is 5.9 x 10 –4 M. What is the [ – OH] in this wine? A)5.9 x 10 –4 M – OH B)1.0 x 10 –7 M – OH C)5.9 x 10 –18 M – OH D)1.7 x 10 –11 M – OH E)1.0 x 10 –14 M – OH

10. Question 5 The [H 3 O + ] in a cabernet sauvignon wine is 5.9 x 10 –4 M. What is the [ – OH] in this wine? A)5.9 x 10 –4 M – OH B)1.0 x 10 –7 M – OH C)5.9 x 10 –18 M – OH D)1.7 x 10 –11 M – OH E)1.0 x 10 –14 M – OH

11. Question 6 What is the molarity of an HNO 3 solution if 24.1 mL of a 0.250 M Ba(OH) 2 solution are needed to titrate a 15.0 mL sample of the acid? A)0.402 M HNO 3 B)0.156 M HNO 3 C)0.311 M HNO 3 D)0.201 M HNO 3 E)0.803 M HNO 3

12. Question 6 What is the molarity of an HNO 3 solution if 24.1 mL of a 0.250 M Ba(OH) 2 solution are needed to titrate a 15.0 mL sample of the acid? A)0.402 M HNO 3 B)0.156 M HNO 3 C)0.311 M HNO 3 D)0.201 M HNO 3 E)0.803 M HNO 3

13. Question 7 What is the estimated age of an artifact that has 1/16 of the amount of carbon-14 (relative to carbon-12) compared to living organisms? (C-14 t 1/2 = 5,730 years) A)1,430 years B)5,730 years C)17,200 years D)22,900 years E)28,700 years

14. Question 7 What is the estimated age of an artifact that has 1/16 of the amount of carbon-14 (relative to carbon-12) compared to living organisms? (C-14 t 1/2 = 5,730 years) A)1,430 years B)5,730 years C)17,200 years D)22,900 years E)28,700 years

15. Question 8 Which nuclear equation is an example of nuclear fission? A) 27 Al + 4 He  30 O + 1 n 13 2 15 0 B) 15 O  15 N + 0 e 8 7 +1 C) 239 Np  239 Pu + 0 e 93 94 -1 D) 235 U + 1 n  137 Te + 97 Zr + 2 1 n 92 0 52 40 0

16. Question 8 Which nuclear equation is an example of nuclear fission? A) 27 Al + 4 He  30 O + 1 n 13 2 15 0 B) 15 O  15 N + 0 e 8 7 +1 C) 239 Np  239 Pu + 0 e 93 94 -1 D) 235 U + 1 n  137 Te + 97 Zr + 2 1 n 92 0 52 40 0

17. Question 9 The equation shown below is an example of what type of nuclear reaction? 239 Np  239 Pu + 0 e 93 94 -1

18. Question 9 The equation shown below is an example of what type of nuclear reaction? 239 Np  239 Pu + 0 e 93 94 -1 BETA DECAY

19. Question 10 What is the bond angle of the C-O-H shown by arrow 3 in the structure below?

20. Question 10 What is the bond angle of the C-O-H shown by arrow 3 in the structure below? 109.5°

21. Question 11 Which compound has the highest boiling point? A)HOCH 2 CH 2 OH B)CH 3 NHCH 2 CH 3 C)CH 3 CO 2 CH 2 CH 3 D)CH 3 NHCH 2 OH E)NaCH 3 COO

22. Question 11 Which compound has the highest boiling point? A)HOCH 2 CH 2 OH B)CH 3 NHCH 2 CH 3 C)CH 3 CO 2 CH 2 CH 3 D)CH 3 NHCH 2 OH E)NaCH 3 COO

23. Question 12 What is the functional group shown in the molecule below?

24. Question 12 What is the functional group shown in the molecule below? ESTER