Zn--->ZnSo4--->X--->ZnO

Question

Zn--->ZnSo4--->X--->ZnO

Answer 1

1)Zn+H2SO4=ZnSO4+H2 2)ZnSO4+2NaOH=Na2SO4+Zn(OH)2 3)Zn(OH)2=ZnO+H2O

Answer 2

Zn+H2SO4(разбав.)=ZnSO4+H2
ZnSO4+NaOH=Na2SO4+Zn(OH)2
Zn(OH)2=ZnO+H2O