AP Chemistry Handout
8.3 Resonance structure
Practice…
1. Write down all the resonance structure of SO3
2. Which is predicted to have the shorter sulfur-oxygen bonds, SO3 or SO32-
3. (AP) Consider CO2 and CO3，draw the Lewis structure of each spieces, account
for the fact that the carbon-oxygen bond length in CO32- is greater than the
carbon-oxygen bond length in CO2.
4. （AP）Draw the lewis structure of the O3 molecule. Include all valid resonance
structure.
5. Draw all possible resonance structure of [H2C=CH-O]-
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