Name_______________________________
Period _____ Date ___/___/___
1  Introduction to Chemistry
CLASSIFYING MATTER
& SEPARATION
OF
MIXTURES
Part 1: Classify each of the materials below. In the center column, state whether the material is a pure
substance or a mixture. If the material is a pure substance, further classify it as either an element or
compound in the right column. Similarly, if the material is a mixture, further classify it as a solution
(homogeneous mixture) or a heterogeneous mixture in the right column.
Material
1.
concrete
2.
sugar + pure water
(C12H22O11 + H2O)
3.
iron filings (Fe)
4.
limestone (CaCO3)
5.
Pacific Ocean
6.
magnesium (Mg)
7.
acetylene (C2H2)
8.
tap water in a glass
9.
soil
10.
chromium (Cr)
11.
Chex mix
12.
salt + pure water
(NaCl + H2O)
13.
benzene (C6H6)
14.
muddy water
15.
brass
(Cu mixed with Zn)
Pure Substance
or Mixture
Element, Compound,
Solution, Heterogeneous Mixture
Part 2: Complete the following sentences by filling in the appropriate word(s) from the list below. Each
word can be used once, more than once, or not at all.
filtration
crystallization
chromatography
distillation
16.
Heterogeneous mixtures are often separated by ______________________.
17.
Separating sand from water can be done by _________________________.
18.
The sugar in sugar water can be removed by _________________________.
19.
The separation technique that takes advantage of different boiling points is called
_________________________.
20.
Removing chlorophyll pigment from leaves might be done by ______________________.
21. Crude oil is broken down by heat, vaporized, and allowed to condense into various liquids such as
gasoline. This process is called ________________________.