Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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According to the kinetic-molecular theory of matter, particles in a
gas a. | are packed
closely together in a regular array. | b. | are packed closely together like solids, but they are not
confined to specific positions. | c. | expand to fill their container. | d. | vibrate back and
forth about an average position. | e. | move slower as the temperature
increases. | | |
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2.
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According to the kinetic-molecular theory of matter, particles in a
liquid a. | are packed
closely together in a regular array. | b. | move slower as the temperature
increases. | c. | expand to fill their container. | d. | vibrate back and
forth about an average position. | e. | are packed closely together, but are not confined to specific
positions. | | |
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3.
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Which
one of the following is a homogeneous mixture? a. | baked beans | b. | sugar dissolved
in water | c. | chocolate chip ice cream | d. | chicken noodle
soup | e. | a jar of chunky
peanut butter | | |
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4.
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Which
of the following is a heterogeneous mixture? a. | mortar (a mixture of calcium carbonate and
sand) | b. | gasoline | c. | antifreeze (a
mixture of water and ethylene glycol) | d. | sodium chloride dissolved in water | e. | the air trapped
inside a balloon (not including the balloon) | | |
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5.
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A
pure substance composed of two or more different elements is a. | a homogeneous
mixture. | b. | a heterogeneous mixture. | c. | a
polyelement. | d. | an atom. | e. | a chemical
compound. | | |
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6.
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A(n)
____ is a pure substance that is composed of only one type of atom. a. | element | b. | homogeneous mixture | c. | heterogeneous
mixture | d. | macroscopic particle | e. | particulate | | |
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7.
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What
is the correct symbol for lead?
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8.
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What
is the correct symbol for iron?
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9.
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What
is the correct symbol for phosphorus?
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10.
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What
is the name of the element with the symbol B? a. | boron | b. | beryllium | c. | bismuth | d. | bromine | e. | barium | | |
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11.
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What
is the name of the element with the symbol Ca? a. | cobalt | b. | carbon | c. | calcium | d. | cadmium | e. | californium | | |
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12.
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Which
term best describes carbon dioxide, CO2? a. | homogeneous
mixture | b. | heterogeneous mixture | c. | element | d. | chemical compound | e. | none of the
above | | |
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13.
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All
of the following are examples of physical properties EXCEPT a. | gold is yellow
in appearance. | b. | aluminum oxidizes to form
Al2O3. | c. | copper is ductile and malleable. | d. | mercury is a
liquid at room temperature. | e. | the density of silver is 10.45
g/cm3. | | |
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14.
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All
of the following are examples of chemical change EXCEPT a. | the tarnishing
of silver. | b. | the rusting of iron. | c. | the combustion
of butane gas. | d. | the condensation of steam. | e. | the
decomposition of water to hydrogen gas and oxygen gas. | | |
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15.
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Which
one of the following is an example of physical change? a. | the evaporation
of water | b. | the rusting of iron | c. | the combustion
of hydrogen | d. | the tarnishing of silver | e. | both the rusting
of iron and the tarnishing of silver | | |
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