Balance each of the following redox reactions occurring in acidic aqueous soluti
ID: 730532 • Letter: B
Question
Balance each of the following redox reactions occurring in acidic aqueous solution.
Cl- (aq) + 2NO3- (aq) rightarrow NO(g) + Cl2(g) Express your answer as a chemical equation. Identify all of the phases in your answer.Explanation / Answer
(balance O with H2O then add the appropriate moles of H^+ on the other side to balance) multiply both half reactions by a coefficient to create equal electrons added: 3(2Cl^- --> Cl2 + 2e^-) = 6Cl^- --> 3Cl2 + 6e^- 2NO3^- + 8H^+ +6e^- --> 2NO + 4H2O add both half reactions to get the net equation: 6Cl^- + 2NO3^- + 8H^+ +6e^- --> 3Cl2 + 6e^- + 2NO + 4H2O remove the common elements, make sure the charge is equal on both sides, make sure the net is balanced for mass, and include phases: 6Cl^-(aq) + 2NO3^-(aq) + 8H^+(aq) --> 2NO(g) + 3Cl2(g) + 4H2O(l)
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