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Chemistry

What is the difference of solution and colloid?

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05/09/2009

In a solution, the solute is completely dissolved in the solvent (salt water). In a colloid, the colloidal particles (as a solute) are dispersed evenly through the dispersing medium (as a solvent). The particles are intermediate sized, which allow for light to pass through, yet still be partially blocked. You can distinguish between the two if the substance exhibits the Tyndall Effect, in which a beam of light is visible from the side (laser beam through fog).