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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Organic chemistry 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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4.
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Basic research is usually performed
a. | to develop new products. | b. | to understand an environmental
problem. | c. | to gain knowledge. | d. | to solve a particular
problem. |
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5.
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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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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 measure of the quantity of matter is
a. | density. | c. | volume. | b. | weight. | d. | mass. |
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9.
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A true statement about mass is that
a. | mass if often measured with a spring scale. | b. | mass is expressed in
pounds. | c. | as the force of Earth's gravity on an object increases, the object's mass
increases. | d. | mass is determined by comparing the mass of an object with a set of standard masses
that are part of a balance. |
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10.
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A student recorded the following while completing an experiment.
Color of
substance: yellow, shiny powder
Effect of magnet: yellow, shiny powder was attracted
The
student should classify the substance as a(n)
a. | element. | c. | mixture. | b. | compound. | d. | plasma. |
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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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A physical change occurs when a
a. | peach spoils. | b. | silver bowl tarnishes. | c. | bracelet turns your
wrist green. | d. | glue gun melts a glue stick. |
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13.
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Nitrogen monoxide and oxygen, both colorless gases, form a red-brown gas when
mixed. Nitrogen monoxide and oxygen are called the
a. | products. | c. | synthetics. | b. | equilibria. | d. | reactants. |
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14.
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A state of matter in which a material has no definite shape but has a definite
volume is the ____ state.
a. | gas | c. | plasma | b. | liquid | d. | solid |
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15.
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Under ordinary conditions of temperature and pressure, the particles in a gas
are
a. | closely packed. | b. | very far from one another. | c. | held in fixed
positions. | d. | unevenly distributed. |
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16.
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A solid substance is
a. | always frozen regardless of its container. | b. | always a crystal
regardless of its container. | c. | always the same shape regardless of its
container. | d. | always losing particles regardless of its container. |
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17.
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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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18.
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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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19.
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Which part of the illustration below shows the particles in a heterogeneous
mixture? 
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20.
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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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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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