Ответ:
2HgO=2Hg+O2
2Mg+O2=2MgO
Fe2O3+2Al=Al2O3+2Fe
4Al+3O2=2Al2O3
Mg + 2HCl=MgCl2 + H2
2H2O=2H2 + O2
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Ответ:
2HgO=2Hg+O2
2Mg+O2=2MgO
Fe2O3+2Al=Al2O3+2Fe
4Al+3O2=2Al2O3
Mg + 2HCl=MgCl2 + H2
2H2O=2H2 + O2