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Balance the following ionic equations (i) Cr2O7^2-+H^++I^- → Cr^3+ +I2+H2O

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Balance the following ionic equations

(i) Cr2O72-+H++I- → Cr3+ +I2+H2O

(ii) Cr2O72- +Fe2+ +H+ → Cr3+ +Fe3+ +H2O

(iii) MnO4- +SO32- +H+ → Mn2+ +SO42- +H2O

(iv) MnO4- +H+ +Br- →Mn2+ +Br2+H2O

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Dividing the equation into two half reactions:

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