Question

Zn → ZnO → ZnCl2 → Zn(OH) 2 → ZnO → Zn(NO3)2

Answer 1

Ответ:

 Cl2+Zn=ZnCl2 (t)

ZnCl2+2AgNO3=2AgCl↓+Zn(NO3)2

Zn(NO3)2+2NaOH=Zn(OH)2↓+2NaNO3

Zn(OH)2=ZnO+H2O (t)

ZnO+2NaOH+H2O=Na2[Zn(OH)4]

Na2[Zn(OH)4]+2HCl=Zn(OH)2↓+2NaCl+2H2O

Zn(OH)2+2NaOH=Na2ZnO2+2H2O (t)

2) 2NaBr+Cl2=2NaCl+Br2

2NaCl=2Na+Cl2↑ (эл-з)

2Na+H2=2NaH

NaH+H2O=NaOH+H2↑

2NaOH+Zn(OH)2=Na2[Zn(OH)4]

Na2[Zn(OH)4]+2HCl=Zn(OH)2↓+2NaCl+2H2O

Zn(OH)2+2HCl=ZnCl2+2H2O

ZnCl2+2AgNO3=2AgCl↓+Zn(NO3)2