Question

Name the type of chemical change :
Zn + 2HCI —— ZnCI, + H,
ii)
N, + O2
2NO
iii) NaOH + HCI
NaCl + H2O
iv)
ZnO + CO.
v)
CuSO, + Na, CO CuCO2 + Na SO
Znco, - heat
3​

Answer 1

Explanation:

first is displacement reactions

Answer 2

Explanation:

1. Displacement reaction
2. Combination reaction
3. When base reacts with acid to form salt and water.

Rest of the questions are not written properly