Question

Mg(OH)2=MgSO4=MgCl2=Mg(NO3)2

Answer 1

а)Mg(OH)2+...=Mg(NO3)2+H2O

b)MgO+...=MgSO4

c)P2O5+...=Ca3(PO4)2+H2O

d)Mg+...=MgCi2+H2