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posted by  Soccer Mom on 11/16/2008 2:15:49 AM  |  status: Live  

chemical bonding

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General Chemistry N/A 9 N/A
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The VSEPR model of chemical bonding has been very successful for some descriptions of chemical bonding, but what are the major weakness(es) of this popular model? (Select all that apply.)




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Soccer Mom
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Oracle
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posted by CHEMNATION! on 11/16/2008 7:32:00 AM  |  status: Live
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Soccer Mom's comment:
" not correct, but thank you."
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The VSEPR model of chemical bonding has been very successful for some descriptions of chemical bonding, but what are the major weakness(es) of this popular model? (Select all that apply.)




Spending precious time on a problem that results in a rating of "not helpful" or "somewhat helpful" is deemed a wasted effort. With certainty, I'll be sure not to provide assistance in that direction again.
 
PROBLEMS WITH CHEMICAL FORMULAS WILL BE ANSWERED FASTER IF PROPER CRAMSTER TOOLBAR FORMATS ARE USED.
 
Oracle
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posted by CHEMNATION! on 11/17/2008 12:59:24 AM  |  status: Live
Asker's Rating: None Provided    Moderator's Rating: Lifesaver
Response Details:
I know the first one is not right.  The 2nd and 3rd are definitely correct.  Regarding the 4th one, about "specific angles".....I was thinking more along the lines of the angles that define the shapes so I felt VSEPR did OK there.....but the word "specific" probably caught me.  For instance, in water, VSEPR predicts an angle of 109.5 degrees but the angle is actually more like 104 degrees.  So, in terms of "specific" angle predictions, the 4th is probably also a selection.
With that said, select 2,3, and 4 but not 1
Spending precious time on a problem that results in a rating of "not helpful" or "somewhat helpful" is deemed a wasted effort. With certainty, I'll be sure not to provide assistance in that direction again.
 
PROBLEMS WITH CHEMICAL FORMULAS WILL BE ANSWERED FASTER IF PROPER CRAMSTER TOOLBAR FORMATS ARE USED.
 
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