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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In
the compound MgCl2, the subscript 2 indicates that a. | there are two
magnesium ions for each ion of chlorine | b. | the chloride ion is twice the size of the magnesium
ion. | c. | magnesium and
chlorine form a double covalent bond. | d. | there are two chloride ions for each magnesium
ion. | | |
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2.
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In
the compound CaCl2, the subscript 2 indicates that a. | the chloride ion
is twice the size of the calcium ion. | b. | calcium and chlorine form a double covalent
bond. | c. | there are two chloride ions for each calcium
ion. | d. | there are two
calcium ions for each ion of chlorine. | | |
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3.
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In
the compound AlCl3, the subscript 3 indicates that a. | aluminum and
chlorine form a triple covalent bond. | b. | there are three aluminum ions for each ion of
chlorine. | c. | the chloride ion is three times the size of the aluminum
ion. | d. | there are three
chloride ions for each aluminum ion. | | |
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4.
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The
name iron(II) indicates that a compound contains a. | iron ions with
an 11+ charge. | c. | iron ions with a
negative charge. | b. | iron ions with a 2+ charge. | d. | two types of iron ions. | | | | |
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5.
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The
name copper(II) indicates that a compound contains a. | copper ions with
a negative charge. | c. | copper ions with
an 11+ charge. | b. | copper ions with a 2+ charge. | d. | two types of copper ions. | | | | |
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6.
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The
name lead(II) indicates that a compound contains a. | lead ions with
an 11+ charge. | c. | lead ions with a
2+ charge. | b. | lead ions with a negative
charge. | d. | two types of
lead ions. | | | | |
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7.
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The
name titanium(II) indicates that a compound contains a. | two types of
titanium ions. | c. | titanium ions
with a negative charge. | b. | titanium ions with a 2+ charge. | d. | titanium ions with an 11+ charge. | | | | |
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Completion
Complete each sentence or
statement.
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8.
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In an
electron dot diagram, each dot represents a(an) ____________________.
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9.
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In an
ionic compound, the attractions between cations and ____________________ hold the compound
together.
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10.
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In
the binary ionic compound potassium bromide, KBr, the element that forms cations is
____________________.
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11.
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The
chemical formula for calcium chloride, CaCl2, shows that the compound contains two
____________________ ions for every ____________________ ion.
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12.
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KBr
is the formula for an ionic compound. The fact that neither symbol is followed by a subscript means
that there is a(an) ____________________ ratio of ions in the compound.
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13.
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You
are given the melting points of three unknown substances and are asked to predict which one is an
ionic compound. You would select the compound with the ____________________ melting
point.
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14.
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The
ions in solid sodium chloride are arranged in a structure called a(an) ____________________
lattice.
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15.
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If
there are two long dashes between two atoms in a structural formula, molecules of the compound
contain a(an) ____________________ bond.
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16.
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A
polar covalent bond forms when ____________________ are not shared equally between
atoms.
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17.
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A
covalent bond forms when ____________________ are shared between two atoms.
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18.
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Two
factors that determine whether a molecule is polar are the types of atoms in the molecule and the
____________________ of the molecule.
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19.
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When
cesium and fluorine react, they form an ionic compound called cesium
____________________.
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20.
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When
magnesium and sulfur react, they form an ionic compound called magnesium
____________________.
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21.
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When
calcium and oxygen react, they form an ionic compound called calcium
____________________.
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22.
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A(An)
____________________ ion is a covalently bonded group of atoms that has a positive or negative
charge.
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23.
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In
ionic compounds, the sum of the charges of all the cations and anions must be
____________________.
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24.
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The
compound whose formula is SO3 is called sulfur ____________________.
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25.
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The
metallic bonds in a transition metal, such as tungsten, are stronger than the metallic bonds in a(an)
____________________ metal, such as sodium.
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26.
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In
general, the more ____________________ a metal has, the stronger its metallic bonds will
be.
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27.
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Among
the elements potassium, lithium, and iron, the metallic bonds are likely to be strongest in
____________________.
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28.
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In a
metal lattice, ____________________ are surrounded by a pool of shared electrons.
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29.
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In
its simplest form, the alloy brass consists of zinc and ____________________.
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30.
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To
produce stainless steel, steelmakers add ____________________ to iron.
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