Write 4 equations of chemical reactions as a result of which ammonia is formed.

Ammonia is a gas with a characteristic pungent odor, very soluble in water.
1. In the laboratory, ammonia is produced by weakly heating a mixture of ammonium chloride (NH4Cl) with slaked lime (Ca (OH) 2).
Let’s write the reaction equation:
2NH4Cl + Ca (OH) 2 = CaCl2 + 2NH3 + 2H2O
2.In industry, ammonia is synthesized from nitrogen and hydrogen.
Let’s write the reaction equation:
N2 + 3H2 = 2NH3
3.Ammonia is formed during the decomposition of ammonium salts:
Let’s write the reaction equation:
NH4Cl (heating) = NH3 + HCl
4. Ammonia is formed by the interaction of active metals with very dilute nitric acid (if it is in short supply).
Let’s write the reaction equation:
4Zn + 9HNO3 (very dil.) = 4Zn (NO3) 2 + NH3 + 3H2O