2. 2Mg+O2=2MgO
MgO+2HCl--->MgCl₂+H₂O
MgCl₂+2NaOH--->Mg(OH)₂↓+2NaCl
Mg(OH)₂--[t]-->MgO+H₂O
MgO+H₂SO₄--->MgSO₄+H₂O
2. 2Mg+O2=2MgO
MgO+2HCl--->MgCl₂+H₂O
MgCl₂+2NaOH--->Mg(OH)₂↓+2NaCl
Mg(OH)₂--[t]-->MgO+H₂O
MgO+H₂SO₄--->MgSO₄+H₂O