Question

Which describe colloids? Check all that apply. heterogeneous mixtures homogeneous mixtures may have a uniform appearance are made up of at least two substances will settle out over time

Answer 1

the striking of the two molecules is known as collision.
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Answer 2

In chemistry, a colloid is a mixture in which one substance of microscopically dispersed insoluble particles is suspended throughout another substance.

May have a uniform appearance
hetrogeneous mixture
are made up of at least two substances.