BrO^- _3 (aq) + N_2H_4(s) rightarrow Br^- (aq) + N_2(g) Express your answer as a chemical...

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Question

Part C Broa (aq) N2H4 (g) Br (ag) N2 (g) Express your answer as a chemical equation. Identify all of the ANSWER

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Answer 1

Answer #1

Split

BrO3- = Br-

N2H4 = N2

balance O

BrO3- = Br- + 3H2O

N2H4 = N2

balance H

6H+ + BrO3- = Br- + 3H2O

N2H4 = N2 + 4H+

balance charge

6e- + 6H+ + BrO3- = Br- + 3H2O

N2H4 = N2 + 4H+ + 4e-

balance e

12e- + 12H+ + 2BrO3- = 2Br- + 6H2O

3N2H4 = 3N2 + 12H+ + 12e-

add all

3N2H4 + 12e- + 12H+ + 2BrO3- = 2Br- + 6H2O + 3N2 + 12H+ + 12e-

cancel e-

3N2H4 + 2BrO3- = 2Br- + 6H2O + 3N2

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Answer 2

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