The names of substances that dissolve in a solution are called solutes.

Here's a breakdown:

* Solution: A homogeneous mixture of two or more substances.

* Solvent: The substance that dissolves the solute. It is usually present in a larger amount.

* Solute: The substance that gets dissolved in the solvent. It is usually present in a smaller amount.

For example, in a sugar solution, sugar is the solute and water is the solvent.