Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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1.
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A chemical can be defined as
a. | a toxic substance. | b. | an unnatural additive placed in
food. | c. | any substance that has a definite composition. | d. | any substance that
is not alive. |
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2.
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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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3.
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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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4.
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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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5.
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A measure of the quantity of matter is
a. | density. | c. | volume. | b. | weight. | d. | mass. |
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6.
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Which of the following is not a physical change?
a. | grinding | c. | boiling | b. | cutting | d. | burning |
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7.
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Which of the following is not a chemical change?
a. | rusting | c. | melting | b. | igniting | d. | burning |
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8.
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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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9.
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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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10.
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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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11.
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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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12.
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Which of the following is an example of a homogeneous mixture?
a. | air | c. | raw milk | b. | orange juice | d. | marble |
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13.
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The state of matter in which a material has neither a definite shape nor a
definite volume is the _____ state.
a. | gaseous | c. | elemental | b. | liquid | d. | solid |
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14.
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The relationship between the mass m of a material, its volume V, and its
density D is
a. | V = mD. | c. | DV = m. | b. | Vm =
D. | d. | D +
V = m. |
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15.
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To calculate the density of an object,
a. | multiply its mass and its volume. | c. | divide its volume by its
mass. | b. | divide its mass by its volume. | d. | divide its mass by its
area. |
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16.
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A bottle contains 3.100 mL of a liquid. The total mass of the bottle and the
liquid together is 6.300 g. The mass of the empty bottle is 4.240 g. What is the density of the
liquid?
a. | 0.665 g/mL | c. | 1.505 g/mL | b. | 1.368 g/mL | d. | 2.032 g/mL |
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17.
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The graph represents the sales data for a particular product. In which week were
8 units sold?  a. | 3rd week | c. | 6th week | b. | 4th week | d. | 9th
week |
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18.
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The product of 2 ´ 104 cm and 4 ´ 10–12 cm, expressed in scientific notation is
____.
a. | 8 ´ 10–7 cm | c. | 8 ´ 10–8 cm | b. | 6 ´
10–8 cm | d. | 8
´ 10–48 cm |
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19.
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What is the density of 37.72 g of matter whose volume is 6.80
cm3?
a. | 0.18 g/cm3 | c. | 30.92 g/cm3 | b. | 5.55
g/cm3 | d. | 256.4
g/cm3 |
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20.
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When 6.02 ´ 1023 is multiplied by 9.1
´ 10–31, the product is
a. | 5.5 ´ 10–8. | c. | 5.5 ´ 10–7. | b. | 5.5 ´
1054. | d. | 5.5 ´ 10–53. |
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21.
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The relationship between the mass m of a material, its volume V,
and its density D is
a. | D = mV. | c. | D = m/V. | b. | D = V/m. | d. | D = m +
v. |
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22.
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The density of aluminum is 2.70 g/cm3. What is the mass of a solid
piece of aluminum with a volume of 1.50 cm3?
a. | 0.556 g | c. | 4.05 g | b. | 1.80 g | d. | 4.20 g |
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23.
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A sample of gold has a mass of 96.5 g and a volume of 5.00 cm3. The
density of gold is
a. | 0.0518 g/cm3. | c. | 101.5
g/cm3. | b. | 19.3 g/cm3. | d. | 483
g/cm3. |
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24.
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The density of pure diamond is 3.5 g/cm3. What is the volume of a
diamond with a mass of 0.25 g?
a. | 0.071 cm3 | c. | 3.75 cm3 | b. | 0.875 cm3 | d. | 14
cm3 |
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25.
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What is the density of 37.72 g of material whose volume is 6.80
cm3?
a. | 0.180 g/cm3 | c. | 30.9 g/cm3 | b. | 5.55
g/cm3 | d. | 256.
g/cm3 |
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26.
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How is the measurement 0.000 065 cm written in scientific notation?
a. | 65 ´ 10–6 cm | c. | 6.5 ´ 10–6 cm | b. | 6.5 ´
10–5 cm | d. | 6.5 ´ 10–4
cm |
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27.
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The measurement 0.020 L is the same as
a. | 2.0 ´ 10–3 L. | c. | 2.0 ´ 10–2 L. | b. | 2.0 ´
102 L. | d. | 2.0 ´ 10–1 L. |
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28.
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How would 0.00930 m be expressed in scientific notation?
a. | 93 ´ 10–4 m | c. | 9.30 ´ 10–3 m | b. | 9.3 ´
10–4 m | d. | 9.30 ´ 10–5
m |
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29.
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Matter that has a uniform and unchanging composition is known as a(n)
____.
a. | compound | c. | mixture | b. | element | d. | substance |
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30.
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The law of conservation of mass states that during a chemical reaction, total
mass is ____.
a. | created | c. | destroyed | b. | the same | d. | utilized |
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31.
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Which technique uses a porous barrier to separate a solid from a liquid?
a. | Chromatography | c. | Distillation | b. | Crystallization | d. | Filtration |
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32.
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A chemical composition of two or more different elements joined together in
fixed proportions is known as a(n) ____.
a. | compound | c. | homogeneous mixture | b. | element | d. | heterogeneous
mixture |
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33.
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Which of the following formations is a physical property of copper?
a. | A deep blue solution when in contact with ammonia. | b. | A new substance when
combined with nitric acid. | c. | A green copper carbonate compound when in
contact with moist air. | d. | A formation of a drill gauge and
wire. |
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Problem
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34.
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Analyze the table and determine which student reported the most precise
data. | Trial | Student A Data (Mass in grams) | Student B Data (Mass in grams) | | 1 | 5.43 | 5.43 | | 2 | 5.45 | 5.47 | | 3 | 5.44 | 5.50 | | 4 | 5.43 | 5.53 | | | |
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35.
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A student reports three trials to determine the density of an article and
records the data as shown in table below. The accepted value of density is 2.55 g/mL. Calculate the
percent error in each trial. | Trial | Student Data (Density in
g/mL) | | 1 | 2.54 | | 2 | 2.56 | | 3 | 2.57 | | |
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