When the partial half-reaction is balanced in acidic solution

CHEMISTRY · Single correct · AP · Chemistry · Chemical Reactions · Chemical Reactions

Problem

When the partial half-reaction NO3−→NO\text{NO}_3^- \rightarrow \text{NO} is balanced in acidic solution, which species must be added first to balance the oxygen atoms? (a) H+\text{H}^+ (b) e−e^- (c) H2O\text{H}_2\text{O} (d) OH−\text{OH}^-

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