AP Chemistrymediummcq1 pt
How many equivalent resonance structures can be drawn for the carbonate ion, CO₃²⁻?
A.3
B.2
C.4
D.1
Explanation
Core Concept
The double bond can sit on any of the three oxygens, giving three equivalent structures. All three contribute equally to the resonance hybrid.
Correct Answer
A3
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