Chapter 8 Review Packet 3-25-09 Reform]

A 5 b 2 c 1 d 4 e 3 30 of the following cannot

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a. 5 b. 2 c. 1 d. 4 e. 3 30. Of the following, ________ cannot accommodate more than an octet of electrons. a. P b. As c. O d. S e. I
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31. The central atom in _____ violates the octet rule. a. NF 3 b. IF 3 c. PF 3 d. SbF 3 e. SO 4 2- 32. The central atom in _____ violates the octet rule. a. NH 3 b. SeF 2 c. BF 3 d. AsF 3 e. CF 4 33. Bond enthalpy is __________. a. always positive b. always negative c. sometimes positive, sometimes negative d. always zero e. unpredictable 34. Of the bonds C-N, C=N, and C = N, the C-N bond is ____________. a. strongest/shortest b. strongest/longest c. weakest/shortest d. weakest/longest e. intermediate in both strength and length 35. Using the table of average bond energies below, the H for the reaction: is _____ kJ. Bond: C≡C C–C H–I C–I C–H Bond energy (kJ/mol): 839 348 299 240 413 A) +160 B) -160 C) -63 D) -217 E) +63
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36. Using the table of bond dissociation energies, the H for the following reaction is _____ kJ. 2HCl(g) + F 2 (g) 2HF(g) + Cl 2 (g) Bond BE(kJ/mol) H-Cl 431 F-F 155 H-F 567 Cl-Cl 242 a. -359 b. -223 c. 359 d. 223 e. 208 37. Which of the following names is/are correct for the compound TiO 2 ? a. titanium dioxide and titanium(IV) oxide b. titanium(IV) dioxide c. titanium oxide d. titanium oxide and titanium(IV) dioxide e. titanium(II) oxide 38. Dynamite _________________. a. was invented by Alfred Nobel b. is made of nitroglycerine and an absorbent such as diatomaceous earth c. is a much safer explosive than pure nitroglycerine d. all of these e. is an explosive
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Page 1 AP Chapter 8 Review 1. c 2. b 3. a 4. e 5. d 6. a 7. b 8. b 9. d 10. a 11. c 12. d 13. c 14. b 15. a 16. b 17. b 18. c 19. d 20. c 21. e 22. b 23. c 24. d 25. c 26. b 27. d 28. e 29. e 30. c 31. c 32. c 33. a 34. d 35. d 36. a 37. a 38. d 39. e
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a 5 b 2 c 1 d 4 e 3 30 Of the following cannot accommodate...

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