Resonance and Formal Charge

AP Chemistry· difficulty 3/5

Resonance structures are

A
$Always equivalent$
B
$Errors$
C
$Different molecules$
D
$Multiple Lewis structures that contribute to the actual bonding (a single, delocalized structure)$
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Explanation

The true structure is a hybrid (weighted average) of all valid resonance forms. e.g., O₃ has two resonance structures averaging to equal O-O bonds.

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