October 9, 2015

Homework Help: ap chem

Posted by Emily on Tuesday, January 23, 2007 at 10:53pm.

consider the molecules PF3 and PF5.

b]is the PF3 molecule polar or is it nonpolar. explain

C] on the basis of bonding principles, predict whether each of the following compounds exists. In each case explain your prediction.
(i) NF5
(ii) AsF5

2. explain why the H-N-H bond angle is 107.5 degrees in NH3.

You need to tell me a little of what you think on these. The last question was a freebie but this one isn't.
for b, draw the Lewis electron dot structure for PF3 and that will tell you the shape. That will tell you if it is polar or non-polar.

For NF5 and AsF5, go through the Lewis dot structures.

i dont know

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