please do all... i will give a thumbs up:)

Draw Lewis Dot Diagrams for the following. Show resonance structures if needed. If the resonance structures are not equivalent structures, determine the formal charges of the atoms and indicate which structure is best.

1. NH3

2. H2O

3. OH-

4. F2

5. CO2

6. PCl3

7. SO3 ^2-

8. ClO2^-

9. ICl4^-

10. PCl5

11. O3

12. CO3^2-

13. SCN-

14. NO2

15. N3^-

16. XeF4