Which of the following reaction corresponds to K a (HNO2):
A) HNO2(aq) + H2O(l) ⇄ H2NO2 (aq) + OH− (aq)
B) HNO2(aq) + H2O(l) ⇄ H3O(aq) + NO2 (aq)
C) HNO2(aq) + H2O(l) ⇄ H3O+ (aq) + NO2− (aq)
D) 3 HNO2(aq) ⇄ H3O+ (aq) + 3 NO− (aq)
E) HNO2(aq) + H2O(l)) ⇄ H3O− (aq) + NO2+ (aq)
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