12/13/2010
Bonding Workshop (Classwork)
Name: ____________________________________
Attempt to answer these. We might have not covered all questions, but try you best at answering the ones you feel
strongly about.
4.
1.
A substance was found to be a soft, nonconducting
Which electron-dot diagram best represents a
solid at room temperature. The substance is most likely compound that contains both ionic and covalent bonds?
1. a molecular solid
3. a metallic solid
2. a network solid
4. an ionic solid
1.
3.
2.
4.
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2.
Which is the correct electron-dot formula for a
molecule of chlorine?
1.
2.
3.
4.
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5.
The correct electron dot formula for hydrogen chloride
is
1.
3.
3.
2.
4.
Which factor distinguishes a metallic bond from an ionic
-------------bond or a covalent bond?
1. the mobility of electrons
2. the mobility of protons
6.
3. the equal sharing of electrons
When an atom of chlorine forms an ionic bond with an
4. the unequal sharing of electrons
atom of sodium, the atom of chlorine
-------------1. loses an electron
2. loses a proton
3. becomes an ion with a smaller radius than the
atom of chlorine
4. becomes an ion with a larger radius than the atom
of chlorine
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12/13/2010
Bonding Workshop (Classwork)
7.
When metals combine with nonmetals, the metallic
atoms tend to
1. lose electrons and become positive ions
2. lose electrons and become negative ions
3. gain electrons and become positive ions
4. gain electrons and become negative ions
11.
Which formula represents a compound that is formed
primarily by sharing electrons?
1. KCl
3. CrCl3
2. CaCl2
4. CCl4
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8.
Which formula represents a molecular substance?
1. CaO
2. CO
3. Li2O
4. Al2O 3
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9.
In which compound have electrons been transferred to
the oxygen atom?
1. CO 2
3. N2O
2. NO2
4. Na2O
12.
Which molecule contains a triple covalent bond between
its atoms?
1. N 2
3. F2
2. O 2
4. H2
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13.
Which elements combine by forming an ionic bond?
1. sodium and potassium
3. carbon and oxygen
2. sodium and oxygen
4. carbon and sulfur
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14.
Which substance contains metallic bonds?
1. Hg( )
10.
2. H2O( )
When a metal atom combines with a nonmetal atom, the
3. NaCl(s)
nonmetal atom will
4. C6H12O6 (s)
1. lose electrons and decrease in size
-------------2. lose electrons and increase in size
3. gain electrons and decrease in size
4. gain electrons and increase in size
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12/13/2010
Bonding Workshop (Classwork)
15.
Which type of bond is formed when electrons are
transferred from one atom to another?
19.
Which compound contains both ionic and covalent
bonds?
1. covalent
2. ionic
1. CaCO 3
3. MgF2
2. PCl3
4. CH2O
3. hydrogen
4. metallic
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16.
The bonds in the compound MgSO4 can be described
as
1. ionic, only
2. covalent, only
3. both ionic and covalent
4. neither ionic nor covalent
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17.
The data table below represents the properties
determined by the analysis of substances A, B, C, and D.
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20.
Base your answer to the question on the balanced
equation below.
2Na(s) + Cl2(g) → 2NaCl(s)
Which of the following choices shows the correct
Lewis electron-dot diagram for a molecule of chlorine,
Cl2?
1.
3.
2.
4.
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21.
Which type of bonding is found in all molecular
substances?
Which substance is an ionic compound?
1. A
3. C
2. B
4. D
1. covalent bonding
3. ionic bonding
2. hydrogen bonding
4. metallic bonding
---------------------------
18.
Covalent bonds are formed when electrons are
1. transferred from one atom to another
2. captured by the nucleus
3. mobile within a metal
4. shared between two atoms
22.
What is the total number of electrons shared in a
double covalent bond between two atoms?
1. 1
2. 2
3. 8
4. 4
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12/13/2010
Bonding Workshop (Classwork)
23.
Which substance contains bonds that involved the
transfer of electrons from one atom to another?
1. CO2
2. NH3
3. KBr
4. Cl2
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24.
Based on bond type, which compound has the highest
melting point?
1. CH3OH
2. C6H14
3. CaCl2
4. CCl4
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25.
Which two substances are covalent compounds?
1. C6H12O6(s) and KI(s)
2. C6H12O6(s) and HCl(g)
3. KI(s) and NaCl(s)
4. NaCl(s) and HCl(g)
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26.
An oxygen molecule contains a double bond because
the two atoms of oxygen share a total of
1. 1 electron
3. 3 electrons
2. 2 electrons
27.
A solid substance is an excellent conductor of
electricity. The chemical bonds in this substance are
most likely
1. ionic, because the valence electrons are shared
between atoms
2. ionic, because the valence electrons are mobile
3. metallic, because the valence electrons are
stationary
4. metallic, because the valence electrons are
mobile
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28.
When sodium and fluorine combine to produce the
compound NaF, the ions formed have the same
electron configuration as atoms of
1. argon, only
3. both argon and neon
2. neon, only
4. neither argon nor neon
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29.
As a bond between a hydrogen atom and a sulfur atom
is formed, electrons are
1. shared to form an ionic bond
2. shared to form a covalent bond
3. transferred to form an ionic bond
4. transferred to form a covalent bond
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4. 4 electrons
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Bonding Workshop (Classwork)
30.
What can be concluded if an ion of an element is
smaller than an atom of the same element?
1. The ion is negatively charged because it has fewer
electrons than the atom.
2. The ion is negatively charged because it has more
electrons than the atom.
3. The ion is positively charged because it has fewer
electrons than the atom.
4. The ion is positively charged because it has more
electrons than the atom.
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31.
A barium atom attains a stable electron configuration
when it bonds with
1. one chlorine atom
3. one sodium atom
2. two chlorine atoms
4. two sodium atoms
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32.
Which formula represents a molecular compound?
1. Kr
2. LiOH
3. N2O 4
4. NaI
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33.
The bonds in BaO are best described as
1. covalent, because valence electrons are shared
2. covalent, because valence electrons are
transferred
3. ionic, because valence electrons are shared
4. ionic, because valence electrons are transferred
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