Yes, a solution is a homogeneous mixture. This means that it has a uniform composition throughout, and there are no visible particles of the solute (the substance being dissolved) suspended in the solvent (the substance doing the dissolving). For example, when salt is dissolved in water, the salt particles become evenly distributed throughout the water, and the solution appears clear.
Other examples of solutions include:
- Air: A mixture of gases, including nitrogen, oxygen, and carbon dioxide
- Sugar dissolved in water
- Rubbing alcohol
In contrast, heterogeneous mixtures have a non-uniform composition, and there are visible particles of the solute suspended in the solvent. For example, a mixture of sand and water is heterogeneous because the sand particles are visible in the water.
Other examples of heterogeneous mixtures include:
- Salad dressing: A mixture of oil, vinegar, and other ingredients
- Cereal and milk
- Fruit salad
So, the key difference between a solution and a heterogeneous mixture is the uniformity of the composition. Solutions are homogeneous, while heterogeneous mixtures are not.