Ammonia (NH₃) itself does not form ionic compounds. It is a covalent compound, meaning it is formed by the sharing of electrons between nitrogen and hydrogen atoms.

However, ammonia can react with water to form ammonium ions (NH₄⁺) and hydroxide ions (OH⁻), which are ionic species.

Here's the equation for the reaction:

NH₃(aq) + H₂O(l) ⇌ NH₄⁺(aq) + OH⁻(aq)

This is the equilibrium reaction for the ionization of ammonia in water. The double arrow indicates that the reaction can proceed in both directions.

Key points:

* Ammonia is a weak base, meaning it only partially ionizes in water.

* The reaction is reversible, and the relative concentrations of the reactants and products depend on the pH of the solution.

Therefore, the ionic equation for ammonia depends on the specific reaction and the presence of other species.