Are my bond angles correct for CF4, NH3, SO4, NH4+, and other molecules?

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hotsexyveronica
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CF4 is it 109.5 degrees for the angle
NH3 109.5 degrees for this angle
SO4^2- 109.5 for this angle
NH4+ 109.5 degrees for this angle
H2S 180 degrees for this angle
PO4^3- 109.5 degrees for this angle
HCl 180 degrees for this angle
NF3 190.5
SiH4 190.5
BF3 190.5
C2H6 190.5
C2H4 190.5
CH2O 190.5
I don't think I am doing these right can someone show me please
 
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Well do you understand the molecular structure or the electron configuration b/c that will help you understand the angles. Also the angle represents the the lowest electron repulsion. You could basically look this up in your textbook...
 
hotsexyveronica said:
CF4 is it 109.5 degrees for the angle
NH3 109.5 degrees for this angle
SO4^2- 109.5 for this angle
NH4+ 109.5 degrees for this angle
H2S 180 degrees for this angle
PO4^3- 109.5 degrees for this angle
HCl 180 degrees for this angle
NF3 190.5
SiH4 190.5
BF3 190.5
C2H6 190.5
C2H4 190.5
CH2O 190.5
I don't think I am doing these right can someone show me please
Please write down the original question EXACTLY as it was given to you. We have no idea what angles you are referring to. Also, show us how you arrive at some of those angles, so we can help/correct you.

Also, HCl has only 2 atoms - there are no bond angles to speak of.