Answer Key

REVIEW QUESTIONS

1 . D

2 . C 10 H 14 N 2 , 74.1% C, 8.6% H, 17.3% N

3 . D

4 . A

5 . A

6 . E

7 . 31  g,  25  g,  81%

8 . 5.81    ×    10 –23 g/atom, 5.31    ×   10–23 g/molecule

9 . 5.5

10 .    C

11 .    76.1%,  19.7%,  4.2%

12 .    C 4 H 9

13 .    See Answers and Explanations