Question

Which choice represents a pair of resonance struct

C=O and Br-Br
N equivalence C-Cl and C equivalence N-Cl
O=C=O and O equivalence C-O
Cl-O-H and Cl-O-
 
How many resonance structures can be drawn for ozone, O3? Express your answer numerically as an integer
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Part A Which choice represents a pair of resonance structures? Note that lone pairs have been omitted for clarity. CO and Br-

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