Chemistry Questions, Please help?

[Luke]

Please help me with these questions.

1. The shape of dichlorophosphine, PHCl2, would be best described as ______

2. The shape of the ammonium ion would be best described as ______

3. The PCl5 molecule has (polar)(non-polar) bonds and is a (polar)(non-polar) molecule.______, ______

4. The hexagonal pyramid is one of the basic arrangements upon which molecular geometries are based.
___ T/F

5. The square pyramid is one of the basic arrangements upon which molecular geometries are based.
___ T/F

Thank for the help in advance.