Question:

Balance the following redox equations:?

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a) Mn^2+ + H2O2 --> MnO2 + H2O

b) Bi(OH)3 + SnO2^2- --> SnO3^2- + Bi

c) Cr2O7^2- + C2O4^2- --> Cr^3+ + CO2

d) ClO3^1- + Cl^1- --> Cl2 +ClO2

e) Mn2+ + BiO3^1- --> Bi^3+ +MnO4^1-

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  1. a) 1 Mn^2+ & 1 H2O2 --> 1 MnO2 & 2 H+  

    b) 2Bi(OH)3 + 3 SnO2^2- -->3 SnO3^2- +2 Bi & 3H2O

    c) 1Cr2O7^2- +3 C2O4^2- -& 14H+  ->2 Cr^3+ + 6 CO2 & 7 H2O

    d)   2 ClO3^1- +  2Cl^1-  & 4H+ --> Cl2 +2 ClO2 & 2 H2O

    e) 2Mn2+ + 5BiO3^1-  & 14 H+ --> 5Bi^3+ +2MnO4^1-  7 H2O

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