In chemistry, a solution is a homogeneous mixture composed of two substances. In such a mixture, a solute is dissolved in another substance, known as a solvent. The solvent does the dissolving.
A solution is a special type of homogeneous mixture. Solutions are homogeneous because, the ratio of solute to solvent remains the same throughout the solution even if homogenized with multiple sources, and stable because, the solute will not settle out, no matter how long the solution sits, and it cannot be removed by a filter or a centrifuge. This type of mixture is very stable, i.e., its particles do not settle, or separate