Объяснение:
1)2Ca+O2=2CaO
2)MgO+CO2=MgCO3
3)Mg+2HCl=MgCl2+H2
4)Mg(OH)2+H2SO4=MgSO4+2H2O
1)Ca(Oh)2+Na2CO3=CaCO3+2NaOH
2)CaCO3+Co2+H2O=Ca(HCO3)2
3)Ca(HCO3)2+Ca(OH)2=2CaCO3+2H2O
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Объяснение:
1)2Ca+O2=2CaO
2)MgO+CO2=MgCO3
3)Mg+2HCl=MgCl2+H2
4)Mg(OH)2+H2SO4=MgSO4+2H2O
1)Ca(Oh)2+Na2CO3=CaCO3+2NaOH
2)CaCO3+Co2+H2O=Ca(HCO3)2
3)Ca(HCO3)2+Ca(OH)2=2CaCO3+2H2O