Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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Inorganic chemistry is the study of
a. | non-carbon related compounds. | b. | the chemistry of living
things. | c. | mathematical modeling. | d. | the identification of the composition of
materials. |
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2.
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Biochemistry is the study of
a. | properties, changes, and relationships between energy and matter. | b. | the chemistry of
living things. | c. | crystals and minerals. | d. | carbon-containing
compounds. |
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3.
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Technological development often occurs
a. | by accident. | b. | long after the basis research is
complete. | c. | in order go learn basic information. | d. | only to make
money. |
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4.
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Applied research is carried out in order to
a. | to solve a particular problem. | b. | by accident. | c. | to learn basic
information. | d. | in order to make money. |
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5.
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Which of the following is an extensive property of matter?
a. | melting point | c. | volume | b. | boiling point | d. | density |
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6.
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Which of the following is an intensive property of matter?
a. | amount of energy | c. | volume | b. | density | d. | mass |
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7.
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An atom is
a. | the smallest unit of matter that maintains its chemical identity. | b. | the smallest unit of
a compound. | c. | always made of carbon. | d. | smaller than an
electron. |
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8.
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A compound is
a. | a pure substance that cannot be broken down into simpler, stable
substances. | b. | a substance, made of two or more atoms that are chemically bonded, that can be broken
down into simpler, stable substances. | c. | the smallest unit of matter that maintains its
chemical identity. | d. | any substance, whether it is chemically bonded
or not. |
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9.
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A measure of the quantity of matter is
a. | density. | c. | volume. | b. | weight. | d. | mass. |
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10.
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Matter includes all of the following except
a. | air. | c. | smoke. | b. | light. | d. | water vapor. |
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11.
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A chemical change occurs when
a. | dissolved minerals solidify to form a crystal. | b. | ethanol is purified
through distillation. | c. | salt deposits form from evaporated
seawater. | d. | a leaf changes color in the fall. |
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12.
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The liquid state of matter can be described as
a. | having definite shape and definite volume. | b. | having neither a
definite shape nor a definite volume. | c. | having lost electrons owing to energy
content. | d. | having a definite volume but not a definite shape. |
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13.
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Plasma is the fourth state of matter. In the plasma state
a. | atoms gain electrons. | b. | atoms lose electrons. | c. | atoms form
molecules. | d. | atomic nuclei break down. |
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14.
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What happens to the energy in a substance when it changes state?
a. | It is destroyed. | b. | It is changed into matter. | c. | It changes form, but
is neither destroyed nor increased. | d. | The energy remains
unchanged. |
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15.
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The only pure substance listed below is
a. | bread dough. | c. | vitamin C (ascorbic acid). | b. | vinegar (5% acetic
acid). | d. | seawater. |
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16.
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A mixture is
a. | a combination of pure substances bonded chemically. | b. | any substance with a
uniform composition. | c. | a blend of any two or more kinds of matter, as
long as each maintains its own unique properties. | d. | any group of elements that are chemically
bonded to one another. |
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17.
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If a mixture is uniform in composition, it is said to be
a. | homogeneous. | c. | heterogeneous. | b. | chemically bonded. | d. | a compound. |
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18.
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A homogeneous mixture is also called
a. | chemically bonded. | c. | a solution. | b. | a compound. | d. | a solute. |
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19.
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If a mixture is not uniform throughout, it is called
a. | homogeneous. | c. | chemically bonded. | b. | heterogeneous. | d. | a solution. |
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20.
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All known chemical elements are organized into groups based on similar chemical
properties in the
a. | chemical chart. | c. | element table. | b. | periodic chart. | d. | None of the
above |
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21.
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The vertical columns on the periodic table are called
a. | periods. | c. | groups. | b. | rows. | d. | elements. |
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22.
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The horizontal rows on the periodic table are called
a. | actinides. | c. | elements. | b. | families. | d. | periods. |
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23.
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It is easy to determine whether a substance is a metal if the substance
is
a. | easy to break down into its components. | b. | very
hard. | c. | very brittle. | d. | a good electrical and heat
conductor. |
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24.
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A nonmetal is usually
a. | brittle. | c. | a good conductor. | b. | malleable. | d. | used to make
jewelry. |
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25.
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Metalloids are often
a. | unreactive. | c. | lanthanides. | b. | semiconductors. | d. | from outer
space. |
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