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ОВР: 1)H2+WO3=W+H2O
2)Al+Fe2O3=AlO+Fe
3)CO+Fe+CO2
4)C+2CuO=2Cu+CO2
ОВР: 1)H2+WO3=W+H2O
2)Al+Fe2O3=AlO+Fe
3)CO+Fe+CO2
4)C+2CuO=2Cu+CO2
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Answers & Comments
3Al + Fe2O3 = 3AlO + 2Fe
(4 верно)