West Virginia Barber Written Practice Exam

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What is unstable uniform mixtures of two or more substances?

Emulsions
Salts
Solutions
Suspensions

The correct answer is: Emulsions

Emulsions are unstable uniform mixtures of two or more substances. In an emulsion, one substance is dispersed in another in the form of small droplets. This is different from solutions where the substances are fully dissolved and evenly distributed, salts which are formed by the reaction of an acid and a base, and suspensions where the substances are mixed together but not fully dissolved, leading to larger particles that eventually settle out.