Washington Esthetician State Board Practice Exam

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What characterizes a suspension?

  1. A state where solid particles are dissolved

  2. A state in which solid particles are distributed throughout a liquid medium

  3. A mixture that is completely homogenous

  4. A mixture that is sprayable

The correct answer is: A state in which solid particles are distributed throughout a liquid medium

A suspension is characterized by solid particles that are distributed throughout a liquid medium but are not dissolved. This means that the solid particles remain suspended in the liquid and may eventually settle out over time if left undisturbed. This behavior distinguishes suspensions from solutions, where the solid is fully dissolved, resulting in a clear and homogeneous mixture. In a suspension, the particles are typically visible to the naked eye and can be separated from the liquid through processes like filtration or sedimentation. This property is crucial in various applications, including cosmetics and skincare, where the stability and distribution of active ingredients can affect product efficacy and texture.

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