Question

Mg →MgO → Mg(OH)₂ → МgSО₄ → МgCl₂ →Mg(NО₃)₂

Answer 1

2Mg + O2 = 2MgO

MgO + H2SO4 = MgSO4 + H2O

MgSO4 + 2KOH = Mg(OH)2 + K2SO4

Mg(OH)2 + 2HCl = MgCl2 + 2H2O

MgCl2 = Mg + Cl2