1)Zn(NO3)2->NO2->HNO3->AgNO3->Ag
2)HNO3->Pb(NO3)2->K2Pb02->Pb(OH)2
3)Na2O2->Na2O->NaOH->NaCl->NaNo3

1. 2 Zn(NO₃)₂ ----> 2 ZnO + 4 NO₂ + O₂2. 3 NO₂ + H₂O = 2HNO₃ + NO3. HNO₃ + AgF = HF + AgNO₃4. AgNO₃ + Mg = Mg(NO₃)₂ + Ag