Mg → MgO → MgBr2 → Mg(OH)2 →Mg3(PO4)3

Question

Mg → MgO → MgBr2 → Mg(OH)2 →Mg3(PO4)3

Answer 1

2Mg+O2->2MgO

MgO+2HBr->MgBr2+H2O

MgBr2+2NaOH->Mg(OH)2(осадок)+2NaBr

3Mg(OH)2+2H3PO4->Mg3(PO4)2+6H2O

Answer 2

1)  2 Mg + O2 = 2 MgO

2) 3 MgO + 2 AlBr3 = 3 MgBr2 + Al2O3

3) MgBr2 +2 KOH = Mg(OH)2 + 2 KBr

4) Mg(OH)2 + Na3PO4 = Mg3 (PO4)3 + NaOH