posted by Michelle on .
Which statement about resonance structures is TRUE:
1) There can never be more than two resonance structures for any molecule.
2) Only ionic compounds use resonance structures
3) The real structure of a molecule is an average or hybrid of the resonance structures
4) Resonance structures are used when chemists are unsure of the true structure.
I believe it is 3....?
Go to the head of the class.