Ma+MgO+Mg(OH)2+MgSo4+Mg(OH)2

Mg -> MgO -> Mg(OH)2 -> MgSO4 ->Mg(OH)2
1) 2Mg + O2 = 2MgO
2) MgO + H2O = Mg(OH)2
3) Mg(OH)2 + H2SO4 = MgSO4 + 2H2O
4) MgSO4 + 2NaOH = Mg(OH)2 + Na2SO4