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chemistry

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Fe2+(aq) + Cr2O7 2- (aq) →Fe3+(aq) + Cr3+(aq)
Balance the equation by using oxidation and reduction half reactions. What is smallest possible integer coefficient of Cr3+ in the combined balanced equation?

  • chemistry - ,

    Fe^+2 ==> Fe^+3 + e
    Cr2O7^2- +6e + 14H^+ ==>2Cr^3+ + 7H2O

    You finish. Multiply equation 1 by 6 and equation 2 by 1, then add the two.

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    Answer pats hair bhaag

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