An ordinary mixture can be separated without using chemicals, a solution cannot.
The major difference between a solution and an ordinary mixture is that solution is homogeneous and an ordinary mixture is heterogeneous.
The major difference between a solution and an ordinary mixture is that solutions are homogeneous mixtures where solute particles are evenly distributed at a molecular level, while ordinary mixtures can be heterogeneous and have distinguishable components. Solutions remain stable and uniform, whereas ordinary mixtures allow for physical separation of their components. Thus, solutions are more uniformly mixed and cannot be visually differentiated, contrasting with visible and separable mixtures.
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