Question 1

For each of the following compounds:
A) Give the shape of the molecule.
B) Indicate the polarity of the molecule.
-SO2

Accepted Answer

Question 2

Which of the following shows these molecules in order from most polar to least polar?

Accepted Answer

A)   CF2Cl2 > CF2H2 > CCl2H2 > CH4 = CCl4
B)   CH4 > CF2Cl2 > CF2H2 > CCl4 > CCl2H2
C)   CF2H2 > CCl2H2 > CF2Cl2 > CH4 = CCl4
D)   CF2Cl2 > CF2H2 > CCl4 > CCl2H2 > CH4
E)   CH4 > CF2H2 > CF2Cl2 > CCl4 > CCl2H2

Question 3

Refer to the SeFS1U1B14S1U1B0 molecule.
-What is the shape of the molecule around the central atom?

Accepted Answer

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

Question 4

In which of the following compounds does the bond between the central atom and fluorine have the greatest ionic character?

Accepted Answer

A)   SF2
B)   SeF2
C)   OF2
D)   SbF3
E)   AsF3

Question 5

As a general pattern, electronegativity is inversely related to

Accepted Answer

A)   atomic size
B)   polarity of the atom.
C)   the number of neutrons in the nucleus.
D)   ionization energy.
E)   two of these.

Question 6

When a metal and a nonmetal chemically combine, they tend to form what type of bond?

Accepted Answer

The answer of When a metal and a nonmetal chemically...

Question 7

In which case is the bond polarity incorrect?

Accepted Answer

A)   δ+ Cl-Br δ-
B)   δ+ Na-O δ-
C)   δ+ H-Br δ-
D)   δ+ Ca-H δ-
E)   δ+ C-O δ-

Question 8

The Cl-Kr-Cl bond angle in KrCl4 is closest to

Accepted Answer

A)   120°.
B)   109°.
C)   150°.
D)   90°.
E)   360°.

Question 9

How many of the following exhibit resonance?
O3 OCl2 NF3 CCl4

Accepted Answer

A)   2
B)   0
C)   3
D)   1
E)   4

Question 10

Select the best Lewis structure for acetone, CH3COCH3.

Accepted Answer

A)   3COCH3. 
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B)   3COCH3. 
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C)   3COCH3. 
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D)   3COCH3. 
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E)   3COCH3. 
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Question 11

Use the following electronegativity values to answer the question:
C 2.5 Cl 3.2
H 2.2 N 3.0
O 3.4
This molecule contains a carbon atom with trigonal planar geometry.

Accepted Answer

A)   C2H6
B)   CO2
C)   CH3Cl
D)   CH3CHO
E)   none of these

Question 12

The bond angles about the carbon atom in the formaldehyde molecule, H2C = O, are about

Accepted Answer

A)   109°.
B)   60°.
C)   120°.
D)   90°.
E)   180°.

Question 13

Which of the following is nonpolar?

Accepted Answer

A)   Cl2O
B)   CS2
C)   SF4
D)   IF3
E)   NCl3

Question 14

Select the correct molecular structure for XeF4.

Accepted Answer

A)   tetrahedral
B)   bent
C)   pyramidal
D)   linear
E)   none of these

Question 15

Select the correct molecular structure for SF4.

Accepted Answer

A)   pyramidal
B)   bent
C)   linear
D)   tetrahedral
E)   none of these

Question 16

Which of the following bonds would be the least polar and yet still be considered polar covalent?

Accepted Answer

A)   Mg-O
B)   Si-O
C)   B-O
D)   N-O
E)   O-O

Question 17

For the elements Rb, F, and O, the order of increasing electronegativity is

Accepted Answer

A)   Rb 
B)   Rb 
C)   O 
D)   F 
E)   none of these.

Question 18

In the reaction between magnesium and sulfur, the magnesium atoms

Accepted Answer

A)   share electrons with sulfur.
B)   become part of polyatomic ions.
C)   become anions.
D)   become cations.

Question 19

Which species has an unpaired electron?

Accepted Answer

A)   OH-
B)   N2
C)   CO
D)   NO
E)   none of these

Question 20

Which of the following is not expected to exist based on the main tenets of valence bond theory?

Accepted Answer

A)   SF6
B)   NF3
C)   PF3
D)   PCl5
E)   NF5

Exam 13: Bonding: General Concepts

In which case is the bond polarity incorrect?

Correct AnswerverifiedShow Answer

The Cl-Kr-Cl bond angle in KrCl4 is closest to

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For each of the following compounds: A) Give the shape of the molecule. B) Indicate the polarity of the molecule. -SO2

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Which of the following bonds would be the least polar and yet still be considered polar covalent?

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As a general pattern, electronegativity is inversely related to

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Select the correct molecular structure for XeF4.

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Which of the following shows these molecules in order from most polar to least polar?

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Refer to the SeF4 molecule. -What is the shape of the molecule around the central atom?

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In the reaction between magnesium and sulfur, the magnesium atoms

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Use the following electronegativity values to answer the question: C 2.5 Cl 3.2 H 2.2 N 3.0 O 3.4 This molecule contains a carbon atom with trigonal planar geometry.

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Which species has an unpaired electron?

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The bond angles about the carbon atom in the formaldehyde molecule, H2C = O, are about

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Select the correct molecular structure for SF4.

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For the elements Rb, F, and O, the order of increasing electronegativity is

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Select the best Lewis structure for acetone, CH3COCH3.

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How many of the following exhibit resonance? O3 OCl2 NF3 CCl4

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In which of the following compounds does the bond between the central atom and fluorine have the greatest ionic character?

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When a metal and a nonmetal chemically combine, they tend to form what type of bond?

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Which of the following is not expected to exist based on the main tenets of valence bond theory?

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Which of the following is nonpolar?

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The Cl-Kr-Cl bond angle in KrCl₄ is closest to

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For each of the following compounds: A) Give the shape of the molecule. B) Indicate the polarity of the molecule. -SO₂

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Select the correct molecular structure for XeF₄.

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Refer to the SeF₄ molecule. -What is the shape of the molecule around the central atom?

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The bond angles about the carbon atom in the formaldehyde molecule, H₂C = O, are about

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Select the correct molecular structure for SF₄.

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Select the best Lewis structure for acetone, CH₃COCH₃.

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How many of the following exhibit resonance? O₃ OCl₂ NF₃ CCl₄

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