Problem: For the carbonate ion, CO32−, draw all of the resonance structures. Identify which orbitals overlap to create each bond.

FREE Expert Solution

Sigma (σ) bonds are the single bonds in molecules. Also, recall that a double bond is composed of 1 σ bond and 1 π bond and a triple bond is composed of 1 σ bond and 2 π bonds.

σ (sigma) bond: A sigma bond is formed from the end-on overlap of orbitals (s–s, s–p, p–p, etc.).



π (pi) bond: A pi bond forms when two p orbitals overlap laterally or in a side-by-side fashion.




Draw the Lewis Structure of CO32−:

C     Group 4A      4 valence e- x 1
O     Group 6A      6 valence e- x 3
-2 charge              + 2 e-

The electrons in the double bond (C=O) can move to the other C-O bond while maintaining the overall charge equal to -2.


Two types of bond: C=O and C-O

For C-O:

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Problem Details

For the carbonate ion, CO32−, draw all of the resonance structures. Identify which orbitals overlap to create each bond.

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Orbital Overlap concept. If you need more Orbital Overlap practice, you can also practice Orbital Overlap practice problems.

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Based on our data, we think this problem is relevant for Professor Maxwell's class at UCF.

What textbook is this problem found in?

Our data indicates that this problem or a close variation was asked in Chemistry - OpenStax 2015th Edition. You can also practice Chemistry - OpenStax 2015th Edition practice problems.