Zn-zno-zn(oh)2-zns-znco3

Question

Zn-zno-zn(oh)2-zns-znco3

Answer 1

2Zn+O2 = 2ZnO;
ZnO + H2O = Zn(OH)2;
Zn(OH)2 + H2S = ZnS + 2H2O; 
ZnS + H2CO3 = ZnCO3 + H2O.