My->MgO->MgSO4->Mg(NO3)2

Question

My->MgO->MgSO4->Mg(NO3)2

Answer 1

Mg+2HNO3->Mg(NO3)2+H2
Mg(NO3)2+H2SO4->MgSO4+2HNO3
MgSO4+2KOH->Mg(OH)2+K2SO4
Mg(OH)2+t->MgO+H2O
MgO+CO->Mg+CO2