Ответ:
1)а)2KMnO4=K2MnO4+MnO2+O2
б)2Al+O2=Al2O3
в)Cu2O+H2=2Cu+H2O
2) O2+2Mg=2MgO
O2+2H2=2H2O
O2+2SO2=2SO3
3) Mg+H2O=MgO+H2
H2+Cl2=2HCl
6HCl+2Al(OH)3=2AlCl3+6H2O
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Ответ:
1)а)2KMnO4=K2MnO4+MnO2+O2
б)2Al+O2=Al2O3
в)Cu2O+H2=2Cu+H2O
2) O2+2Mg=2MgO
O2+2H2=2H2O
O2+2SO2=2SO3
3) Mg+H2O=MgO+H2
H2+Cl2=2HCl
6HCl+2Al(OH)3=2AlCl3+6H2O