Mg-->MgO-->MgCl2-->Mg(OH)2-->Mg3(PO4)2-->Mg(H2PO4)2-->MgHPO4-->MgSO4

Question

Mg-->MgO-->MgCl2-->Mg(OH)2-->Mg3(PO4)2-->Mg(H2PO4)2-->MgHPO4-->MgSO4

Answer 1

2Mg+O2--->2MgOMgO +2HCl---->MgCl2+H2O
MgCl2+2NaOH---->Mg(OH)2+2NaCl
3Mg(OH)2+2H3PO4----> Mg3(PO4)2+ 6H2O
Mg3(PO4)2+ 4H3PO4----->3 Mg(H2PO4)2
Mg(H2PO4)2+3NaOH-----> MgHPO4+ Na3PO4 +3H2O
MgHPO4+H2SO4----.> MgSO4+H3PO4