PSI Barbering Practice Exam

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Study for the PSI Barbering Exam. Prepare yourself with multiple choice questions and detailed explanations designed to help you succeed. Build your confidence and knowledge as you get ready for your licensing exam in the barbering profession!

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What is the term used for a suspension of one liquid dispersed in another?

Solution
Emulsion
Colloid
Mixture

The correct answer is: Emulsion

The correct term for a suspension of one liquid dispersed in another is emulsion. Emulsions are mixtures consisting of two immiscible liquids, where one is dispersed in the other in the form of tiny droplets. This is commonly seen in products such as mayonnaise or lotion, where oil and water are combined but do not blend well naturally. In contrast, a solution occurs when one substance is completely dissolved in another, resulting in a homogeneous mixture. A colloid, while similar to an emulsion in that it consists of dispersed phases, refers to a system where very small particles are suspended throughout a medium and does not necessarily involve two liquids. A mixture is a broader term that encompasses any combination of substances that are physically combined, which can include solids, liquids, or gases, but does not specifically refer to the interaction of two liquids as emulsions do.