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General : Question
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 Message 1 of 4 in Discussion 
From: MSN NicknameAlbert1145  (Original Message)Sent: 3/26/2008 1:09 AM
Which of the following statements about the CO32- ion is FALSE?

A. One C-O bond is shorter than the others.
B. The orbitals on the carbon atom are sp2 hybridised.
C. The four atoms of this ion lie in the same plane.
D. The ion has a total of 24 valence electrons.


I'm thinking C or D?


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Reply
 Message 2 of 4 in Discussion 
From: MSN Nickname·Steve·Sent: 3/26/2008 1:22 AM
Answer A is incorrect.  Due to resonance, all three carbon-oxygen bonds are equivalent.
The site below gives a good description of the carbonate ion and its structure. 
 
Steve
 
 
O=CHem Resonance Theory

Reply
 Message 3 of 4 in Discussion 
From: MSN NicknameAlbert1145Sent: 3/26/2008 8:09 AM
Thank you Steve, the site is really helpful!

Reply
 Message 4 of 4 in Discussion 
From: MSN Nickname·Steve·Sent: 3/26/2008 10:39 PM
You're welcome, Albert.  They did a good job with the resonance structures of CO2, makes it understandable!

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