60 POINTS
- If the item is not a molecule, indicate that it is not a molecule.

- If it is a molecule, determine if the molecule is polar or nonpolar based on the shape, and
explain your answer.

- If it is a molecule, determine if the molecule is polar or nonpolar based on the polarity
calculations discussed in the reading. You must show your calculations.

1. PBr3
2. N2H2
3. C2H2
4. N2
5. NCl3
6. SiF4
7. NH3
8. H2O
9. F
10. H2