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31 August, 18:18

Which statement describes a mixture of sand and water at room temperature?

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Answers (2)
  1. 31 August, 18:25
    0
    It's a heterogeneous mixture.
  2. 31 August, 18:35
    0
    Option A

    Explanation:

    The question is incomplete. The complete question is as follows

    Which statement describes a mixture of sand and water at room temperature?

    A) It is heterogeneous, and its components are in different phases.

    B) It is homogeneous, and its components are in different phases.

    C) It is homogeneous, and its components are in the same phase.

    D) It is heterogeneous, and its components are in the same phase.

    Answer

    Let's define phase, heterogenous and homogenous.

    Phases are different states of matter. There are 4 different phases; solid, liquid, gas and plasma. Homogenous mixtures are mixtures whose components are thoroughly and evenly mixed. Example include a mixture of salt and water. Heterogenous mixtures are mixtures that are not thoroughly mixed. Example include a mixture of sand and sugar.

    A mixture of sand and water has both solid and liquid substances. This means that its components are in different phases. This rule out option C and D.

    The mixture of water and sand is heterogenous. It's not evenly mixed. If we take three samples from the mixture, all of them will have different proportion of gravel, water and sand partials.

    Therefore, option A is the correct answer.
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