Question

NA->Na2O->NAOH->NACl(электролиз)

Zn->ZnO->ZnCl2->Zn(OH)2(стрелка от последнего к первому с.)

N->NO2->HNO3->Cu)NO3)2

Answer 1

2Na + O2 = Na2O

Na2O + H2O = 2NaOH

NaOH + HCl = NaCl + H2O

NaCl =elektorolyz=>H2 + Cl2 +2NaOH

 

2Zn+O2 = 2ZnO

ZnO + 2HCl = ZnCl2 + H2O

ZnCl2 + 2NaOH = Zn(OH)2 + 2NaCl

Zn(OH)2 + 2K = 2KOH + Zn

 

N+O2=NO2

NO2+H2O=HNO3

4HNO3+Cu = Cu(NO3)2 + 2NO2 + 2H2O

Answer 2

2Na + O2 = Na2O

Na2O + H2O = 2NaOH

NaOH + HCl = NaCl + H2O

NaCl =elektorolyz=>H2 + Cl2 +2NaOH

 

2Zn+O2 = 2ZnO

ZnO + 2HCl = ZnCl2 + H2O

ZnCl2 + 2NaOH = Zn(OH)2 + 2NaCl

Zn(OH)2 + 2K = 2KOH + Zn

 

N+O2=NO2

NO2+H2O=HNO3

4HNO3+Cu = Cu(NO3)2 + 2NO2 + 2H2O

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