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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What
is the correct symbol for potassium?
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2.
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What
is the name of the element with the symbol Pb? a. | iron | b. | lead | c. | phosphorus | d. | plutonium | e. | rubidium | | |
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3.
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Which
statement concerning NaCl is true? a. | NaCl has properties similar to sodium metal and chlorine
gas. | b. | NaCl is a
homogeneous mixture. | c. | NaCl is a heterogeneous mixture. | d. | The percentage
of Na in NaCl is dependent on where the sample is obtained. | e. | NaCl is composed
of ions, which are electrically charged atoms. | | |
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4.
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All
of the following statements are true EXCEPT a. | sodium is represented by the symbol
Na. | b. | fluorine is
represented by the symbol F. | c. | magnesium is represented by the symbol
Mg. | d. | carbon is
represented by the symbol Ca. | e. | tin is represented by the symbol Sn. | | |
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5.
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Which
of the following is a heterogeneous mixture? a. | sodium chloride dissolved in water | b. | gasoline | c. | antifreeze (a mixture of water and ethylene
glycol) | d. | dijon mustard | e. | diet
soda | | |
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6.
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Approximately how many elements are found in nature?
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7.
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Which
of the following substances is not an element?
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8.
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What
is the name of the element with the symbol B? a. | barium | b. | beryllium | c. | borax | d. | bromine | e. | boron | | |
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9.
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A
pure substance that is composed of two or more different elements is a. | a chemical
compound. | b. | a multi-element. | c. | an
atom. | d. | a heterogeneous mixture. | e. | a homogeneous
mixture. | | |
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10.
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The
molecular model depicts a molecule composed of carbon (black), oxygen (gray), and hydrogen (white.
atoms. What is the correct molecular formula?
a. | CHO | b. | C6H6O2 | c. | C6H7O | d. | C7H6O | e. | C7H6O2 | | |
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11.
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All
of the following are examples of physical properties EXCEPT a. | the density of
neon gas. | b. | the conductivity of copper wire. | c. | the boiling
point of water. | d. | the frying of an egg. | e. | the density of
mercury metal. | | |
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12.
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All
of the following are examples of chemical change EXCEPT a. | the condensation
of steam. | b. | the rusting of iron. | c. | the combustion
of propane gas. | d. | the tarnishing of silver. | e. | the
decomposition of water to hydrogen gas and oxygen gas. | | |
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Numeric Response
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13.
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Enter
your score on the M-1 Exam for Multiple Choice below (10/10), so that your exam may be adjusted for
improvement. If your score is not as good, this test will be ignored.
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