PS 2.pdf - Chem 227-302 Review and Problem Solving 2 1....

Chem 227-302
Review and Problem Solving 2
1. Polar Covalent Bonds
Which structure/s contain/s a net dipole? Draw a crossed arrow indicating the direction of the
net dipole.
Which has the stronger over-all dipole?
2. Functional Groups/Resonance
a. Give the molecular formula for the molecule
b. Identify functional groups
c. Draw in the missing non-bonding electron pairs
d. What is the hybridization of the 2 nitrogens?
e. Can you draw a resonance structure for this compound?
f. If your answer to d is yes, draw 1 resonance structure.
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Use clear curved-arrow formalism to show how electrons flow in the resonance form on the left to give
the one on the right. Show lone pairs when necessary.