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Chemistry
Chemistry
Problem
Which ion listed below has exactly three equivalent resonance structures? a)
NO
2
−
\text{NO}_2^-
NO
2
−
b)
NO
3
−
\text{NO}_3^-
NO
3
−
c)
ClO
4
−
\text{ClO}_4^-
ClO
4
−
d)
SO
4
2
−
\text{SO}_4^{2-}
SO
4
2
−
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