# chemistry

Balance the redox reaction of eq.
Cu2S + SO4(-2) gives CuO + SO2 (Acidic )

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1. First step.
Cu2S ==> 2CuO
Cu changes from total of +2 on the left to total of +4 on the right.
S changes from +6 in SO4^2- to +4 in SO2.
Now you balance the two half reactions.

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2. 3 Cu2S + 8 SO4{-}2 + 8 H{+} = 6 CuO + 11 SO2 + 4 H2O

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