Ответ:
KMnO4=O2+MnO2+K2MnO4
Mg+O2=MgO2
MgO2+H2O=Mg(OH)2 +O2
Mg(Oh)2+H2SO4=MgSO4+2H2O
MgSO4+2NaOH=Mg(OH)2+Na2SO4
Mg(OH)2=MgO+H2O
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Ответ:
KMnO4=O2+MnO2+K2MnO4
Mg+O2=MgO2
MgO2+H2O=Mg(OH)2 +O2
Mg(Oh)2+H2SO4=MgSO4+2H2O
MgSO4+2NaOH=Mg(OH)2+Na2SO4
Mg(OH)2=MgO+H2O