Объяснение:
Cu+HgCl2=CuCl2+Hg
2Al+Fe2O3=Al2O3+2Fe
Zn+2HCl=ZnCl2+H2
Mg+H2SO4=MgSO4+H2
Fe+CuSO4=FeSO4+Cu
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Объяснение:
Cu+HgCl2=CuCl2+Hg
2Al+Fe2O3=Al2O3+2Fe
Zn+2HCl=ZnCl2+H2
Mg+H2SO4=MgSO4+H2
Fe+CuSO4=FeSO4+Cu