Use VSEPR theory to predict the shape of each of the following. THEN, determine if the molecule has a net...

1. Use VSEPR theory to predict the shape of each of the following. THEN, determine if the molecule has a net dipole. SHOW YOUR WORK. If electronegativity values aren't shown that means you should be able to predict relative values:
a) NI3 (N=3.0, I=2.5)
b) NF3 (N=3.0, F=4.0)
c) SeO2
d) SO3
e) SiF4