Assignment

Question 1. Draw a Lewis structure for each compound. Include all nonbonding pairs of electrons.

a) CH₃CN
b) CH₃OCH₃
c) (CH₃)₂NH₂CI
d) CF₄
e) HCO₂Na
NaCI

Question 2. For each compound in question 1, state whether its bonding is covalent, ionic, or a mixture of covalent and ionic.

Question 3. Using electronegativity values, identify the polar covalent bonds in the compounds in question 1 and label the atoms δ+ and δ-, as appropriate.

Question 4. Draw the important resonance forms to show the delocalization of charges in the following ions.

Question 5. For each of the following compounds, give the hybridization and approximate bond angles around each atom except hydrogen. (Draw Lewis structure if easier].

a) CH₂CHCN
b) CH₃COOH
c) (CH₃)CHNCH₃