* Solute: Ammonia (NH₃)

* Solvent: Water (H₂O)

Explanation:

Household ammonia is a solution, meaning it's a mixture of two or more substances. In this case, ammonia gas (NH₃) is dissolved in water (H₂O).

* Solute: The substance that dissolves in the other is the solute. In this case, it's the ammonia gas.

* Solvent: The substance that does the dissolving is the solvent. Water is an excellent solvent, and it's the primary component of household ammonia.