Автор - Natusy14

MgCO3 -> MgCl2 -> Mg -> MgSO4
MgCO3 ->Mg(HCO3)2 -> MgCO3

Ответ

Автор - adik9
MgCO3+2HCl=>MgCl2+CO2+H2O
MgCl2=>Mg+Cl2
Mg+H2SO4=>MgSO4+H2

MgCO3+H2O +CO2=>Mg(HCO3)2
Mg (HCO3)2=>MgCO3+H2O+CO2

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