Question 1

How many lone pairs of electrons are around the central atom?

Accepted Answer

one lone p...

Question 2

Select the correct molecular structure for NH3.

Accepted Answer

A)   linear
B)   tetrahedral
C)   pyramidal
D)   bent
E)   none of theseF) A) and D)
G) A) and C)

Question 3

Which of the following has the Lewis structure most like that of CO32-?

Accepted Answer

A)   SO32-
B)   CO2
C)   NO3-
D)   NO2
E)   O3F) None of the above
G) All of the above

Question 4

For each of the following compounds:
A) Give the shape of the molecule.
B) Indicate the polarity of the molecule.
-OCl2

Accepted Answer

Question 5

Which of the following Lewis structures best describes BF3?

Accepted Answer

A)   3? 
A)     
B)     
C)     
D)     
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B)   3? 
A)     
B)     
C)     
D)     
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C)   3? 
A)     
B)     
C)     
D)     
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D)   3? 
A)     
B)     
C)     
D)     
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E)   3? 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >F) B) and D)
G) A) and B)

Question 6

Which of the following molecules has a dipole moment?

Accepted Answer

A)   SCl6
B)   CO2
C)   OF2
D)   BH3
E)   None of these has a dipole moment.F) A) and B)
G) B) and E)

Question 7

Which molecule or ion violates the octet rule?

Accepted Answer

A)   CH4
B)   I3-
C)   NO3-
D)   SO3
E)   CO2F) All of the above
G) B) and D)

Question 8

Based on electronegativities, which of the following would you expect to be most ionic?

Accepted Answer

A)   N2
B)   CO2
C)   CF4
D)   CH4
E)   CaF2F) None of the above
G) A) and E)

Question 9

Which of the following molecules and ions has a lone pair of electrons on the central atom?

Accepted Answer

A)   PCl5
B)   XeO4
C)   BeCl2
D)   CH3+
E)   CH3-F) C) and D)
G) None of the above

Question 10

Select the correct molecular structure for IF6+.

Accepted Answer

A)   tetrahedral
B)   pyramidal
C)   octahedral
D)   square planar
E)   none of theseF) A) and D)
G) A) and B)

Question 11

Estimate the bond energy of the N2 molecule. 2 molecule.   for NH3 = -46.0 kJ/mol N-H bond energy = 391 kJ/mol H-H bond energy = 432 kJ/mol A)  1140 kJ/mol B)  560 kJ/mol C)  87 kJ/mol D)  479 kJ/mol E)  958 kJ/mol" class="answers-bank-image d-inline" rel="preload" > for NH3 = -46.0 kJ/mol
N-H bond energy = 391 kJ/mol
H-H bond energy = 432 kJ/mol

Accepted Answer

A)   1140 kJ/mol
B)   560 kJ/mol
C)   87 kJ/mol
D)   479 kJ/mol
E)   958 kJ/molF) None of the above
G) All of the above

Question 12

Choose the molecule with the strongest bond.

Accepted Answer

A)   HBr
B)   HCl
C)   HF
D)   HIE) B) and D)
F) C) and D)

Question 13

For which of the following can we not draw a stable Lewis structure?

Accepted Answer

A)   PCl5
B)   OCl6
C)   SCl6
D)   All of these have stable Lewis structures.
E)   None of these has a stable Lewis structure.F) A) and B)
G) B) and C)

Question 14

Consider the compound crotonaldehyde, whose skeleton is  Which carbon in this molecule has tetrahedral bonding?

Accepted Answer

A)   2
B)   3
C)   4
D)   1
E)   All have tetrahedral bonding.F) D) and E)
G) A) and C)

Question 15

Consider the following molecules.
I. BF3
II. CHBr3 (C is the central atom.) 
III. Br2
IV. XeCl2
V. CO
VI. SF4
Select the molecule(s)  that fit the given statement.These molecules violate the octet rule.

Accepted Answer

A)   III, V, VI
B)   I, II, IV, VI
C)   I, IV, VI
D)   I, II, IV
E)   I, III, IV, VIF) A) and B)
G) C) and D)

Question 16

Choose the molecule with the strongest bond.

Accepted Answer

A)   HF
B)   NH3
C)   H2O
D)   CH4E) All of the above
F) A) and C)

Question 17

Which of the following molecules contains a double bond?

Accepted Answer

A)   CO2
B)   H2O
C)   NH3
D)   all
E)   noneF) C) and D)
G) None of the above

Question 18

Refer to the SeFS1U1B14S1U1B0 molecule.
-What is the electron arrangement around the central atom?

Accepted Answer

The answer of Refer to the SeFS1U1B14S1U1B0 molecule.
-What is the...

Question 19

Choose the statement that best describes the PbCl4 molecule in the gas phase.

Accepted Answer

A)   The molecule is polar.
B)   The bonds are nonpolar.
C)   The molecule is polar with bond angles of about 109°.
D)   The bond angles are all about 109°.
E)   The molecule has a dipole moment.F) A) and B)
G) C) and E)

Question 20

In the Lewis structure for elemental nitrogen, there is(are)

Accepted Answer

A)   a triple bond between the nitrogens.
B)   three unpaired electrons.
C)   a double bond between the nitrogens.
D)   a single bond between the nitrogens.
E)   none of theseF) A) and C)
G) A) and B)

Exam 13: Bonding: General Concepts

For which of the following can we not draw a stable Lewis structure?

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Select the correct molecular structure for IF6+.

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Estimate the bond energy of the N2 molecule. for NH3 = -46.0 kJ/mol N-H bond energy = 391 kJ/mol H-H bond energy = 432 kJ/mol

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Choose the molecule with the strongest bond.

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Consider the following molecules. I. BF3 II. CHBr3 (C is the central atom.) III. Br2 IV. XeCl2 V. CO VI. SF4 Select the molecule(s) that fit the given statement.These molecules violate the octet rule.

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Which molecule or ion violates the octet rule?

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Choose the molecule with the strongest bond.

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Which of the following molecules contains a double bond?

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How many lone pairs of electrons are around the central atom?

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Which of the following has the Lewis structure most like that of CO32-?

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Choose the statement that best describes the PbCl4 molecule in the gas phase.

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Which of the following molecules has a dipole moment?

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Based on electronegativities, which of the following would you expect to be most ionic?

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Refer to the SeF4 molecule. -What is the electron arrangement around the central atom?

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Select the correct molecular structure for NH3.

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Consider the compound crotonaldehyde, whose skeleton is Which carbon in this molecule has tetrahedral bonding?

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Which of the following Lewis structures best describes BF3?

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Which of the following molecules and ions has a lone pair of electrons on the central atom?

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For each of the following compounds: A) Give the shape of the molecule. B) Indicate the polarity of the molecule. -OCl2

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In the Lewis structure for elemental nitrogen, there is(are)

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Select the correct molecular structure for IF₆⁺.

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Estimate the bond energy of the N₂ molecule. for NH₃ = -46.0 kJ/mol N-H bond energy = 391 kJ/mol H-H bond energy = 432 kJ/mol

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Consider the following molecules. I. BF₃ II. CHBr₃ (C is the central atom.) III. Br₂ IV. XeCl₂ V. CO VI. SF₄ Select the molecule(s) that fit the given statement.These molecules violate the octet rule.

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one lone p...
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Which of the following has the Lewis structure most like that of CO₃^2-?

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Choose the statement that best describes the PbCl₄ molecule in the gas phase.

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Refer to the SeF₄ molecule. -What is the electron arrangement around the central atom?

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Select the correct molecular structure for NH₃.

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Which of the following Lewis structures best describes BF₃?

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For each of the following compounds: A) Give the shape of the molecule. B) Indicate the polarity of the molecule. -OCl₂

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