Question

Zn(OH) 2 → H 2 O → HNO 3 → Zn(NO 3 ) 2 → ZnO → CaZnO 2

Answer 1

Zn(OH)2 → H2O → HNO3 → Zn(NO3)2 → ZnO → CaZnO2.

(1) Zn(OH)2 → ZnO + H2O.

(2) N2O5 + H2O → 2HNO3.

(3) ZnO + 2HNO3 → Zn(NO3)2 + H2O.

(4) 2Zn(NO3)2 → 2ZnO + 4NO2 + O2.

(5) ZnO + CaO → CaZnO2.