Question

What is the difference between a solution and heterogeneous mixture?

Answer 1

A solution is a solid (the solvent) dissolved in a liquid (the solute). A heterogeneous mixture is two substances in different states (i.e. a gas and a liquid) that are in the same space and are in contact with each other. When you have a solution that is a gas-gas or a liquid-liquid or possibly a solid-solid solution, the matter of greater amount is the solute. A solution is an example of a homogeneous mixture (can't see the particles with a naked eye). But with heterogeneous mixtures, you can see the particles.