2CuO + C==> CO2 + 2Cu
Forget the 79.5g CuO. If you want 63.5 g Cu, that is 63.5/63.5 = 1 mol Cu. So you need 1/2 mol C and that is 6 g.
Copper Oxide + Carbon -> Copper + Carbon Dioxide
Calculate the mass of carbon needed to obtain 63.5g of copper from 79.5g of Copper Oxide
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