True/False
Indicate whether the statement is true or
false.
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1.
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When a chemical change occurs, the products have a greater mass than the
reactants.
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2.
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Two types of heterogeneous mixtures are suspensions and colloids.
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3.
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A change in state of matter is a physical change.
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4.
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A change of state is a chemical change because ice and water do not resemble one
another.
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5.
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A suspension is a mixture containing particles that settle out if left
undisturbed.
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6.
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Compounds can be separated into their component elements by a series of physical
changes.
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7.
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Muddy water from a creek after a heavy rain is an example of a
suspension.
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8.
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Matter that has a uniform and unchanging composition is called a pure
substance.
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Multiple Choice
Identify the choice that best completes the
statement or answers the question.
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9.
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Which of the following represents a compound?
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10.
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Which of the following is a physical change?
a. | corrosion | b. | explosion | c. | evaporation | d. | rotting of
food |
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11.
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What must occur for a change to be a chemical reaction?
a. | There must be a change in chemical properties. | b. | There must only be a
change in physical properties. | c. | The change must only involve a change in
mass. | d. | The change must involve a change in volume. |
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12.
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All of the following are physical properties of matter EXCEPT ____.
a. | color | c. | ability to rust | b. | mass | d. | melting point |
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13.
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A substance that can be separated into two or more substances only by a chemical
change is a(n) ____.
a. | solution | b. | element | c. | mixture | d. | compound |
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14.
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Which of the following is a heterogeneous mixture?
a. | vinegar in water | c. | oil and vinegar | b. | milk | d. | air |
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15.
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A chemical change occurs when a piece of wood ____.
a. | is split | b. | is painted | c. | decays | d. | is
cut |
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16.
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Three examples of physical change are ____.
a. | boiling of water, bursting of a balloon, and crumpling a piece of
paper | b. | burning of gasoline, rotting of an egg, and exploding fireworks | c. | freezing of water,
evaporation of gasoline, and rusting a nail | d. | sawing of wood, crushing a can, and toasting a
marshmallow |
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17.
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Which is a chemical property of copper?
a. | has a boiling point of 2567° C | c. | has the symbol
Cu | b. | reacts in air to form a green layer | d. | is a solid at room
temperature |
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18.
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Which of the following is NOT an example of matter?
a. | air | b. | heat | c. | smoke | d. | water vapor |
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19.
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The shape of an apple is a ____.
a. | chemical change | c. | physical change | b. | chemical property | d. | physical
property |
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20.
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Fog is an example of a ____.
a. | colloid | b. | compound | c. | solution | d. | substance |
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21.
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Which of the following processes does NOT involve a change in chemical
properties?
a. | rusting | b. | fermenting | c. | boiling | d. | burning |
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22.
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Solutions can also be called
a. | a compound. | c. | heterogeneous mixtures. | b. | homogeneous
mixtures. | d. | none of the
above.. |
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23.
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Which of the following items is NOT a compound?
a. | baking soda | b. | salad dressing | c. | sucrose | d. | table
salt |
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24.
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Which is NOT a chemical change?
a. | a piece of wood is burned | b. | an egg is cooked | c. | a bar of iron
rusts | d. | ingredients for a cake are stirred together |
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25.
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Which of the following is NOT a physical change?
a. | grating cheese | c. | fermenting of cheese | b. | melting cheese | d. | mixing two cheeses in a
bowl |
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26.
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What you would call the tea mix when you are making iced tea.
a. | solute | b. | liquid | c. | compound | d. | solvent |
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27.
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If a liquid says “shake well before serving,” it is most likely
a
a. | pure substance. | b. | colloid. | c. | suspension. | d. | solution. |
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28.
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Which of the following is a homogeneous mixture?
a. | salt water | b. | beef stew | c. | sand and water | d. | soil |
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29.
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A mixture can be classified as a solution, suspension, or colloid based on
the
a. | how much liquid it contains. | c. | number of particles it
contains. | b. | color of its particles. | d. | size of its particles. |
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30.
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The second letter in a properly written chemical symbol always is ____.
a. | capitalized | b. | underlined | c. | lower case | d. | boldfaced |
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