In-Class Questions

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10.1
How many dots showing electrons are around the
“S” in the Lewis structure of a sulfur atom?
1.
2.
3.
4.
5.
Tro IC3
6
4
8
2
3
10.1
How many dots showing electrons are around the
“S” in the Lewis structure of a sulfur atom?
1.
2.
3.
4.
5.
Tro IC3
6
4
8
2
3
10.2
When electrons are completely transferred from
one atom to another, the bond between the ions is
called:
1.
2.
3.
4.
5.
Tro IC3
Polar covalent
Ionic
Polar ionic
Nonpolar covalent
Covalent
10.2
When electrons are completely transferred from
one atom to another, the bond between the ions is
called:
1.
2.
3.
4.
5.
Tro IC3
Polar covalent
Ionic
Polar ionic
Nonpolar covalent
Covalent
10.3
Use Lewis theory to predict the chemical formula of
the product formed by the reaction between
aluminum and atomic oxygen.
1.
2.
3.
4.
5.
Tro IC3
AlO
Al3O
Al3O2
Al2O3
Al3O3
10.3
Use Lewis theory to predict the chemical formula of
the product formed by the reaction between
aluminum and atomic oxygen.
1.
2.
3.
4.
5.
Tro IC3
AlO
Al3O
Al3O2
Al2O3
Al3O3
10.4
How many paired electrons are in the Lewis
structure of lithium nitride?
1.
2.
3.
4.
5.
Tro IC3
3
5
8
4
0
10.4
How many paired electrons are in the Lewis
structure of lithium nitride?
1.
2.
3.
4.
5.
Tro IC3
3
5
8
4
0
10.5
How many valence electrons are there in one
silicon atom?
1.
2.
3.
4.
5.
Tro IC3
3
6
14
4
8
10.5
How many valence electrons are there in one
silicon atom?
1.
2.
3.
4.
5.
Tro IC3
3
6
14
4
8
10.6
How many electrons must a phosphorus atom gain
in order to have a full valence shell?
1.
2.
3.
4.
5.
Tro IC3
2
3
1
5
0
10.6
How many electrons must a phosphorus atom gain
in order to have a full valence shell?
1.
2.
3.
4.
5.
Tro IC3
2
3
1
5
0
10.7
How many electrons are there in the outer shell of
an oxide ion?
1.
2.
3.
4.
5.
Tro IC3
8
2
4
6
0
10.7
How many electrons are there in the outer shell of
an oxide ion?
1.
2.
3.
4.
5.
Tro IC3
8
2
4
6
0
10.8
How many resonance structures are possible for
the nitrate ion?
1.
2.
3.
4.
5.
Tro IC3
1
3
0
4
2
10.8
How many resonance structures are possible for
the nitrate ion?
1.
2.
3.
4.
5.
Tro IC3
1
3
0
4
2
10.9
How many bonding pairs of electrons are in one
molecule of ammonia?
1.
2.
3.
4.
5.
Tro IC3
1
2
3
4
0
10.9
How many bonding pairs of electrons are in one
molecule of ammonia?
1.
2.
3.
4.
5.
Tro IC3
1
2
3
4
0
10.10
How many lone pairs of electrons are in one
molecule of carbon tetrachloride?
1.
2.
3.
4.
5.
Tro IC3
4
6
0
8
12
10.10
How many lone pairs of electrons are in one
molecule of carbon tetrachloride?
1.
2.
3.
4.
5.
Tro IC3
4
6
0
8
12
10.11
Which of the following contains one or more double
bonds?
1.
2.
3.
4.
5.
Tro IC3
F2
N2
CN1CO
SiO2
10.11
Which of the following contains one or more double
bonds?
1.
2.
3.
4.
5.
Tro IC3
F2
N2
CN1CO
SiO2
10.12
Which of the following contains a triple bond?
1.
2.
3.
4.
5.
Tro IC3
C2H2
H2
OF2
CF4
OH1-
10.12
Which of the following contains a triple bond?
1.
2.
3.
4.
5.
Tro IC3
C2H2
H2
OF2
CF4
OH1-
10.13
How many lone pairs are around the central atom
in carbon tetrachloride?
1.
2.
3.
4.
5.
Tro IC3
1
4
0
12
16
10.13
How many lone pairs are around the central atom
in carbon tetrachloride?
1.
2.
3.
4.
5.
Tro IC3
1
4
0
12
16
10.14
What is the bond angle in a sulfur dioxide
molecule?
1.
2.
3.
4.
5.
Tro IC3
180°
120°
90°
109.5°
104°
10.14
What is the bond angle in a sulfur dioxide
molecule?
1.
2.
3.
4.
5.
Tro IC3
180°
120°
90°
109.5°
104°
10.15
What is the electron geometry of boron trifluoride?
1.
2.
3.
4.
5.
Tro IC3
Linear
Trigonal planar
Tetrahedral
Trigonal pyramidal
Bent
10.15
What is the electron geometry of boron trifluoride?
1.
2.
3.
4.
5.
Tro IC3
Linear
Trigonal planar
Tetrahedral
Trigonal pyramidal
Bent
10.16
What would be the shape of NH21–?
1.
2.
3.
4.
5.
Tro IC3
Linear
Trigonal planar
Tetrahedral
Trigonal pyramidal
Bent
10.16
What would be the shape of NH21–?
1.
2.
3.
4.
5.
Tro IC3
Linear
Trigonal planar
Tetrahedral
Trigonal pyramidal
Bent
10.17
What is the electron geometry of a compound when
the central atom is surrounded by 3 single bonds
and 1 lone pair?
1.
2.
3.
4.
5.
Tro IC3
Linear
Trigonal planar
Tetrahedral
Trigonal pyramidal
Bent
10.17
What is the electron geometry of a compound when
the central atom is surrounded by 3 single bonds
and 1 lone pair?
1.
2.
3.
4.
5.
Tro IC3
Linear
Trigonal planar
Tetrahedral
Trigonal pyramidal
Bent
10.18
Which of the following is most soluble in water?
1.
2.
3.
4.
5.
Tro IC3
CH3OH
CO2
C2H4
F2
CCl4
10.18
Which of the following is most soluble in water?
1.
2.
3.
4.
5.
Tro IC3
CH3OH
CO2
C2H4
F2
CCl4
10.19
Which of the following has a central atom that often
does not obey the octet rule?
1.
2.
3.
4.
5.
Tro IC3
CH4
BF3
CCl4
NO3
NH41+
10.19
Which of the following has a central atom that often
does not obey the octet rule?
1.
2.
3.
4.
5.
Tro IC3
CH4
BF3
CCl4
NO3
NH41+
10.20
Which of the following contain a nonpolar, purely
covalent bond?
1.
2.
3.
4.
5.
Tro IC3
NH3
CaCl2
I2
CO2
CO
10.20
Which of the following contain a nonpolar, purely
covalent bond?
1.
2.
3.
4.
5.
Tro IC3
NH3
CaCl2
I2
CO2
CO
10.21
Which of the following molecules contain one or
more polar covalent bonds, but is nonpolar?
1.
2.
3.
4.
5.
Tro IC3
CO
N2
H2O
HF
SiO2
10.21
Which of the following molecules contain one or
more polar covalent bonds, but is nonpolar?
1.
2.
3.
4.
5.
Tro IC3
CO
N2
H2O
HF
SiO2
10.22
Which of the following is the most soluble in
gasoline (C8H18)?
1.
2.
3.
4.
5.
Tro IC3
H2O
HCl
NH3
CF4
NaCl
10.22
Which of the following is the most soluble in
gasoline (C8H18)?
1.
2.
3.
4.
5.
Tro IC3
H2O
HCl
NH3
CF4
NaCl
10.23
Tro IC3
Arrange the following elements in order of
increasing electronegativity (lowest first):
Cl, Te, Se, Sr, and Ba.
Do NOT use a table of numeric electronegativity
values.
1. Cl, Te, Se, Sr, Ba
2. Cl, Te, Se, Ba, Sr
3. Ba, Sr, Te, Se, Cl
4. Sr, Ba, Te, Se, Cl
5. Ba, Sr, Se, Te, Cl
10.23
Tro IC3
Arrange the following elements in order of
increasing electronegativity (lowest first):
Cl, Te, Se, Sr, and Ba.
Do NOT use a table of numeric electronegativity
values.
1. Cl, Te, Se, Sr, Ba
2. Cl, Te, Se, Ba, Sr
3. Ba, Sr, Te, Se, Cl
4. Sr, Ba, Te, Se, Cl
5. Ba, Sr, Se, Te, Cl
10.24
Tro IC3
What is the basic structure of a soap molecule or
ion?
1. A long polar tail and a nonpolar head that
are water- and membrane-soluble,
respectively
2. A long nonpolar tail that is water-soluble
3. A polar head that is membrane-soluble
4. A long nonpolar tail and a polar head that
are membrane- and water-soluble,
respectively
5. Two of the above
10.24
Tro IC3
What is the basic structure of a soap molecule or
ion?
1. A long polar tail and a nonpolar head that
are water- and membrane-soluble,
respectively
2. A long nonpolar tail that is water-soluble
3. A polar head that is membrane-soluble
4. A long nonpolar tail and a polar head that
are membrane- and water-soluble,
respectively
5. Two of the above
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