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Given four substances NaCl, ethylene glycol, alcohol, and liquid soap each dissolved in water to yield dilute aqueous solutions. Which one of these solutions would you expect to form a colloid?

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Answer:

liquid soap

Step-by-step explanation:

A colloid is a mixture in which a substance is equally dispersed in a liquid. Soap solution is a colloidal solution as the soap units don't liquefy because they are bigger However in a true solution the substance are totally dissolved in water and the mixture can pass through a semi-permeable membrane without dividing the components of the solution. Examples of true solutions are salt solution, alcohol dissolved in water,

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