Mixtures and Solutions Quiz
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Questions and Answers

What is a mixture?

A combination of two or more substances that retains their own properties and can be separated by physical methods.

Which of the following is a homogeneous mixture?

  • Oil and vinegar
  • Sand and salt
  • Salt and water (correct)
  • Milk (correct)
  • A colloid can be seen with the naked eye.

    False

    What is an example of a mechanical mixture?

    <p>Sand and salt</p> Signup and view all the answers

    A solid and a liquid that separates when left standing is called a ______.

    <p>suspension</p> Signup and view all the answers

    What does a solute do in a solution?

    <p>Dissolves in the solvent</p> Signup and view all the answers

    What is an example of an emulsion?

    <p>Oil and vinegar</p> Signup and view all the answers

    The substance that dissolves a solute in a solution is called a ______.

    <p>solvent</p> Signup and view all the answers

    Study Notes

    Mixtures

    • A mixture is a combination of two or more substances, each retaining its properties.
    • Mixtures can be separated by physical methods.
    • Mixtures can be homogeneous or heterogeneous.

    Solutions

    • A solution is a transparent mixture of a solute dissolved in a solvent.
    • The solute and solvent remain evenly distributed and don't separate when left to stand.

    Colloids

    • A colloid is an opaque mixture of tiny particles suspended in another substance.
    • These particles are too small to see with the naked eye.
    • Unlike suspensions, colloids do not separate when left to stand.

    Mechanical Mixtures

    • A mechanical mixture is a heterogeneous combination of substances.
    • The components can be easily distinguished.

    Suspensions

    • A suspension is a heterogeneous mixture of a solid and a liquid.
    • Particles in suspensions settle out over time.
    • Suspensions can be separated by filtering.

    Emulsions

    • An emulsion is a heterogeneous mixture of two liquids.
    • Emulsions separate when left to stand.

    Solutes and Solvents

    • A solute is the substance that dissolves in a solvent.
    • A solvent is the substance that dissolves the solute.
    • Together they form a solution.

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    Description

    Test your knowledge on the different types of mixtures, including solutions, colloids, mechanical mixtures, suspensions, and emulsions. This quiz covers key properties and separation methods of these substances. Understand the distinctions and characteristics that define each category.

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