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    Balence reactions

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    Thanks for your response on the oxidation reduction it was helpful, but how do you balance equations without oxygen?
    such as Cu2+Fe------->Cu+Fe2
    I started out with Cu2-->Cu
    and on the oxidation side Fe-->Fe2+
    and what about this one?
    Sn2+2Fe)3+----Sn)4+ 2Fe)2+

    © BrainMass Inc. brainmass.com March 4, 2021, 6:25 pm ad1c9bdddf

    Solution Preview

    You are correct! You want to start with the half reactions.

    Cu2+ --> 2Cu

    Start by balancing mass. So we need a 2 on the left:

    2Cu2+ --> 2Cu

    Now balance charge. We need ...

    Solution Summary

    It shows how to balance the chemical reaction.