4.. Допишите уравнения химических реакций. Укажите тип реакций

а) ...... + ...... = H2O
б) Fe + O2 = ......
в) ...... + HCl = AlCl3 + ......
г) Cu + ...... = CuO
д) CH4 + O2 = ...... + ......
е) CuO + ...... = Cu + ......
ж) ...... + O2 = SO2
з) CuS + ...... = SO2 + ......
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