* Homogeneous Mixture: A homogeneous mixture has a uniform composition throughout. This means that the components are evenly distributed and indistinguishable from each other.

* Aqueous Solution: An aqueous solution is simply a solution where water is the solvent.

* Copper Sulfate: Copper sulfate (CuSO₄) is a solid ionic compound. When it dissolves in water, the copper ions (Cu²⁺) and sulfate ions (SO₄²⁻) become evenly dispersed throughout the water molecules.

Therefore, an aqueous solution of copper sulfate is a homogeneous mixture because the copper sulfate dissolves completely in the water, creating a uniform solution with the copper and sulfate ions evenly distributed.