Transcript You are given an aqueous solution that contains a Co 2

Molecular Geometry
© 2012 Pearson Education, Inc.
10.1
In the Lewis structure for sulfur, how many
dots should be around the symbol “S”?
a.
b.
c.
d.
e.
6
4
8
2
3
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10.2
When electrons are completely transferred
from one atom to another, the bond between
the ions is called
a.
b.
c.
d.
e.
polar covalent.
ionic.
polar ionic.
nonpolar covalent.
covalent.
© 2012 Pearson Education, Inc.
10.3
Use Lewis theory to predict the chemical
formula of the product formed by the reaction
between aluminum and oxygen.
a.
b.
c.
d.
e.
AlO
Al3O
Al3O2
Al2O3
Al3O3
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10.5
How many valence electrons are there in
one silicon atom?
a.
b.
c.
d.
e.
3
6
14
4
8
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10.6
How many electrons must a phosphorus
atom gain in order to have a full valence
shell?
a.
b.
c.
d.
e.
2
3
1
5
0
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10.7
How many electrons are there in the outer
shell of an oxide ion?
a.
b.
c.
d.
e.
8
2
4
6
0
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10.9
How many bonding pairs of electrons are in
one molecule of ammonia, NH3?
a.
b.
c.
d.
e.
1
2
3
4
0
© 2012 Pearson Education, Inc.
10.10
How many lone pairs of electrons are in one
molecule of carbon tetrachloride?
a.
b.
c.
d.
e.
4
6
0
8
12
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10.11
Which of the following contains one or more
double bonds?
a.
b.
c.
d.
e.
F2
N2
CN–
CO
SiO2
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10.13
How many lone pairs are around the central
atom in the ammonium ion?
a.
b.
c.
d.
e.
1
4
0
12
16
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10.14
What is the bond angle in a sulfur dioxide
molecule?
a.
b.
c.
d.
e.
180°
120°
90°
109.5°
104°
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10.15
What is the electron geometry of boron
trifluoride?
a.
b.
c.
d.
e.
Linear
Trigonal planar
Tetrahedral
Trigonal pyramidal
Bent
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10.16
What is the molecular geometry of NH2–?
a.
b.
c.
d.
e.
Linear
Trigonal planar
Tetrahedral
Trigonal pyramidal
Bent
© 2012 Pearson Education, Inc.
10.17
What is the electron geometry of a compound
when the central atom is surrounded by 3
single bonds and 1 lone pair?
a.
b.
c.
d.
e.
Linear
Trigonal planar
Tetrahedral
Trigonal pyramidal
Bent
© 2012 Pearson Education, Inc.
10.19
Which of the following has a central atom
that often does not obey the octet rule?
a.
b.
c.
d.
e.
CH4
BF3
CCl4
NO3
NH4+
© 2012 Pearson Education, Inc.
10.20
Which of the following contains a nonpolar,
purely covalent bond?
a.
b.
c.
d.
e.
NH3
CaCl2
I2
CO2
CO
© 2012 Pearson Education, Inc.
10.23
Without using a table of electronegativity,
arrange the following elements in order of
increasing electronegativity:
Cl, Te, Se, Sr, Ba
a.
b.
c.
d.
e.
Cl, Te, Se, Sr, Ba
Cl, Te, Se, Ba, Sr
Ba, Sr, Te, Se, Cl
Sr, Ba, Te, Se, Cl
Ba, Sr, Se, Te, Cl
© 2012 Pearson Education, Inc.
10.27
Which of the following has a bent molecular
geometry?
a.
b.
c.
d.
e.
f.
HCN
CO2
HF
CH4
Two of the above
None of the above
© 2012 Pearson Education, Inc.
10.28
Which of the following will exhibit trigonal
pyramidal molecular geometry?
a.
b.
c.
d.
e.
BH3
NO3–
NH3
CO32–
None of the above
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