CK-12 Physical Science Concepts - For Middle School

(Marvins-Underground-K-12) #1

3.45. Solutions http://www.ck12.org


FIGURE 3.87


Oil from an oil spill floats on ocean water.

Because air is a solution, it is homogeneous. In other words, no matter where you go, the air always contains the
same proportion of gases that are shown in the graph.


FIGURE 3.88


Summary



  • A solution is a homogeneous mixture of two or more substances in which the dissolved particles are too small
    to be seen or to settle out of the mixture.

  • In a solution, the substance that dissolves is the solute, and the substance that dissolves the solute is the solvent.

  • A solute that can dissolve in a given solvent is said to be soluble in that solvent. A solute that cannot dissolve
    in a given solvent is said to be insoluble in that solvent.

  • Solutions may be liquids such as salt water, solids such as alloys, or gases such as air.

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