MgCO3 + 2HCl = MgCl2 + H2O + CO2↑
MgCl2 + 2NaOH = Mg(OH)2↓ + 2NaCl
Mg(OH)2 =t= MgO + H2O
MgO + H2 = Mg + H2O
Mg + 2HCl = MgCl2 + H2↑
MgCO3 + 2HCl = MgCl2 + H2O + CO2↑
MgCl2 + 2NaOH = Mg(OH)2↓ + 2NaCl
Mg(OH)2 =t= MgO + H2O
MgO + H2 = Mg + H2O
Mg + 2HCl = MgCl2 + H2↑