Name Class Date
2.2 Mixtures
A mixture is a physical blend of two or more components that can be separated by physical
means.
Lesson Summary ๎Classifying Mixtures ๎Mixtures can be classified according to
how their components are distributed.
In a heterogeneous mixture, the components are not evenly distributed. In a homogeneous
mixture, or solution, the components are evenly distributed. A heterogeneous mixture
consists of at least two phases, but a homogeneous mixture contains exactly one phase.
Separating Mixtures ๎The physical properties of the components of a mixture can be
used to separate the mixture.
A solid and a liquid can be separated by filtration because of the difference in the physical
properties of the two components. A liquid solution might be separated by distillation, during
which the component with the lowest boiling point is boiled off, and the resulting vapors are
then condensed.
After reading Lesson 2.2, answer the following questions.
Classifying Mixtures
1. ๎Is the following sentence true or false? Most samples of matter are mixtures.True
2. ๎What is a mixture? It's a physical blend of two or more substances.
3. ๎Is the following sentence true or false? A heterogeneous mixture is one that has a
completely uniform composition. false
๎4. ๎What is another name for a homogeneous mixture? solution
๎5. ๎Circle the letter of the term that describes a part of a sample having uniform
composition and properties.
๎a. ๎Solution
๎b. ๎mixture
c. ๎state
d. ๎phase
6. ๎How many phases exist in these types of mixtures?
a. ๎Homogeneous=one
b. ๎Heterogeneous =two or more
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Essential ๎Understanding
Name Class Date
Separating
Mixtures
7. ๎In general, what is used to separate
