This is the difference between a homogeneous and a heterogeneous mixture.
For example, salt (NaCl) and water make a homogeneous mixture (the same proportions of its components throughout any given sample), because both substances are polar.
A solution is homogeneous mixture composed of two or more substances.
In aqueous solution, a solvent is water and solute (in this example sodium chloride) is a substance dissolved in water.
A heterogeneous mixture is not uniform in composition (in this mixture different metals and minerals), but proportions of its components (for example mixture particles of different colors, small pebbles) vary throughout the sample.
More about mixtures: brainly.com/question/13208667
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