ZnS→ZnO→ZnSO4→Zn(OH)2→ZnO ↓ Zn(NO3)2

Question

ZnS→ZnO→ZnSO4→Zn(OH)2→ZnO
↓
Zn(NO3)2

Answer 1

Zns+2hno3=zn(no3)2+h2s растворение осадка.
2zns+3o2=2zno+2so2
zno+h2so4=znso4+h2o
znso4+2naoh=na2so4+zn(oh)2
zn(oh)2 t=zno+h2o