Question: In chemistry, what is colloid?  Edit

Answer: the most simple definition of colloid is that, colloid a mixture whose medium-sized particles do not settle out of solution upon standing, but are large enough to scatter light. The particle size of the dispersed phase typically ranges from 1 nanometer to 1 micrometer.

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).

Examples of colloids:
1. Milk, butter
2. Cream in coffee
3.smoke, cloud, fog  Edit