Answers to Practice Exam 2

1. B; 2. B; 3. C; 4. B; 5. C; 6. D; 7. C; 8. A; 9. D; 10. C;

11. i) a; ii) c; iii) a; 12. 8.8 x 10²⁰; 13. -1665 kJ; 14. 74.8%; 15. 0.00156; 16. 0.0025 M;

17. 46.0 g/mol; 18. 0.202 atm; 19. 33.26 ^oC; 20. A) increasing temperature: right, increase; adding H₂:¨right, increase; adding Fe(s): no change, increase; Decrease volume of container: no change, no change; B) K will increase