Question

Part A: Formal charge

For each of the following ions, draw a lewis dot structure that obeys the octet rule. If multiple resonance structures exist, please draw all of them. Then, assign formal chargers to ALL atoms. show your work and label formal charges clearly.

a. NH₃

b. (NO₂)^-

c. (NO₃)^-

Part B: Hybridization

For each of the following molecular formulas, draw one lewis structure, and than state the hybridization employed by the central atom.

a. (NH₃)^-

b. (CO₃)^-2

^{c. CIF₃}

d. PF₆ ^-

Part D: Multiple bonds

For each of the hydrocarbons, draw a lewis structure, state the hybridization used by the carbon atoms, and then tell whether the molecule is polar or nonpolar.

a. CH₄

b. C₂H₄

C. C₂H4