The given reaction take place as follows (i) Ammonia (NH3) reacts with H2O and CO2 to give ammonium carbonate [(NH4)2CO3]. NH3+
H2O
(A)
+CO2⟶(NH4)2CO3 (ii) Ammonium carbonate react with water (H2O) and CO2 to give ammonium hydrogen carbonate (NH4HCO3). (NH4)2CO3+H2O+
CO2
(B)
⟶2NH4HCO3 (iii) Ammonium hydrogen carbonate reacts with sodium chloride (NaCl) to give ammonium chloride (NH4Cl) along with sodium bicarbonate (NaHCO3). NH4HCO3+NaCl⟶NH4Cl+