Question 1

Which of the following represent the Lewis structure for Cl?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 2

Choose the best Lewis structure for SO42⁻.

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 3

Which of the following reactions is associated with the lattice energy of CaS (ΔH°latt)?

Accepted Answer

A) Ca(s)+ S(s)→ CaS(s) 
B) CaS(s)→ Ca(s)+ S(s) 
C) Ca2⁺(aq)+ S2⁻(aq)→ CaS(s) 
D) Ca2⁺(g)+ S2⁻(g)→ CaS(s) 
E) CaS(s)→ Ca2+(aq)+ S2⁻(aq) 
A) Ca(s)+ S(s)→ CaS(s) 
B) CaS(s)→ Ca(s)+ S(s) 
C) Ca2⁺(aq)+ S2⁻(aq)→ CaS(s) 
D) Ca2⁺(g)+ S2⁻(g)→ CaS(s) 
E) CaS(s)→ Ca2+(aq)+ S2⁻(aq)

Question 4

Describe the difference between a pure covalent bond and a polar covalent bond.

Accepted Answer

A pure covalent bond occurs when bonding

Question 5

Choose the best Lewis structure for BF3.

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 6

Which of the following processes is exothermic?

Accepted Answer

A) the second ionization energy of Mg 
B) the sublimation of Li 
C) the breaking the bond of I2 
D) the formation of NaBr from its constituent elements in their standard state 
E) None of the above are exothermic. 
A) the second ionization energy of Mg 
B) the sublimation of Li 
C) the breaking the bond of I2 
D) the formation of NaBr from its constituent elements in their standard state 
E) None of the above are exothermic.

Question 7

Which of the following ionic compounds would be expected to have the highest lattice energy?

Accepted Answer

A) LiF 
B) LiCl 
C) LiBr 
D) LiI 
A) LiF 
B) LiCl 
C) LiBr 
D) LiI

Question 8

Choose the bond below that is most polar.

Accepted Answer

A) H-I 
B) H-Br 
C) H-F 
D) H-Cl 
E) C-H 
A) H-I 
B) H-Br 
C) H-F 
D) H-Cl 
E) C-H

Question 9

Which ionic compound would be expected to have the highest lattice energy?

Accepted Answer

A) Rb2O 
B) SrO  
C) In2O3 
D) CO2 
A) Rb2O 
B) SrO  
C) In2O3 
D) CO2

Question 10

Which of the following represent the Lewis structure for N?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 11

In the Lewis structure of CH3OH,how many lone pairs of electrons are there?

Accepted Answer

A) 5 
B) 7 
C) 3 
D) 2 
A) 5 
B) 7 
C) 3 
D) 2

Question 12

Describe a covalent bond.

Accepted Answer

A bond for

Question 13

Using the data predict the lattice energy of NaCl

Accepted Answer

A) -787 kJ/mol 
B) -900 kJ/mol 
C) -680 kJ/mol 
D) -600 kJ/mol 
A) -787 kJ/mol 
B) -900 kJ/mol 
C) -680 kJ/mol 
D) -600 kJ/mol

Question 14

Choose the compound below that should have the lowest melting point according to the ionic bonding model.

Accepted Answer

A) LiF 
B) NaCl 
C) CsI 
D) KBr 
E) RbI 
A) LiF 
B) NaCl 
C) CsI 
D) KBr 
E) RbI

Question 15

Predict the formula of an ionic compound between aluminum and oxygen.

Accepted Answer

A) AlO2 
B) AlO 
C) Al2O3 
D) Al3O2 
A) AlO2 
B) AlO 
C) Al2O3 
D) Al3O2

Question 16

Using Lewis structures and formal charge,which of the following ions is most stable?
OCN⁻ ONC⁻ NOC⁻

Accepted Answer

A) OCN⁻ 
B) ONC⁻ 
C) NOC⁻ 
D) None of these ions are stable according to Lewis theory. 
E) All of these compounds are equally stable according to Lewis theory. 
A) OCN⁻ 
B) ONC⁻ 
C) NOC⁻ 
D) None of these ions are stable according to Lewis theory. 
E) All of these compounds are equally stable according to Lewis theory.

Question 17

Which molecule or compound below contains a polar covalent bond?

Accepted Answer

A) C2H4 
B) ZnS 
C) LiI 
D) NCl3 
E) AgCl 
A) C2H4 
B) ZnS 
C) LiI 
D) NCl3 
E) AgCl

Question 18

Draw the Lewis structure for NO2⁻ including any valid resonance structures.Which of the following statements is true?

Accepted Answer

A) The nitrite ion contains one N-O single bond and one N=O double bond. 
B) The nitrite ion contains two N-O bonds that are equivalent to 1.5 bonds. 
C) The nitrite ion contains two N=O double bonds. 
D) The nitrite ion contains two N-O single bonds. 
E) None of the above are true. 
A) The nitrite ion contains one N-O single bond and one N=O double bond. 
B) The nitrite ion contains two N-O bonds that are equivalent to 1.5 bonds. 
C) The nitrite ion contains two N=O double bonds. 
D) The nitrite ion contains two N-O single bonds. 
E) None of the above are true.

Question 19

Which has the highest meting point?

Accepted Answer

A) NaCl 
B) KCl 
C) RbCl 
D) CsCl 
A) NaCl 
B) KCl 
C) RbCl 
D) CsCl

Question 20

Using periodic trends,place the following bonds in order of decreasing ionic character.
Sb-Cl P-Cl As-Cl

Accepted Answer

A) Sb-Cl > As-Cl > P-Cl 
B) As-Cl > Sb-Cl > P-Cl 
C) Sb-Cl > P-Cl > As-Cl 
D) P-Cl > As-Cl > Sb-Cl 
E) P-Cl > Sb-Cl > As-Cl 
A) Sb-Cl > As-Cl > P-Cl 
B) As-Cl > Sb-Cl > P-Cl 
C) Sb-Cl > P-Cl > As-Cl 
D) P-Cl > As-Cl > Sb-Cl 
E) P-Cl > Sb-Cl > As-Cl

Which of the following represent the Lewis structure for Cl?

Choose the best Lewis structure for SO₄²⁻.

Which of the following reactions is associated with the lattice energy of CaS (ΔH°_latt)?

Describe the difference between a pure covalent bond and a polar covalent bond.

Choose the best Lewis structure for BF₃.

Which of the following processes is exothermic?

Which of the following ionic compounds would be expected to have the highest lattice energy?

Choose the bond below that is most polar.

Which ionic compound would be expected to have the highest lattice energy?

Which of the following represent the Lewis structure for N?

In the Lewis structure of CH₃OH,how many lone pairs of electrons are there?

Describe a covalent bond.

Using the data predict the lattice energy of NaCl

Choose the compound below that should have the lowest melting point according to the ionic bonding model.

Predict the formula of an ionic compound between aluminum and oxygen.

Using Lewis structures and formal charge,which of the following ions is most stable? OCN⁻ ONC⁻ NOC⁻

Which molecule or compound below contains a polar covalent bond?

Draw the Lewis structure for NO₂⁻ including any valid resonance structures.Which of the following statements is true?

Which has the highest meting point?

Using periodic trends,place the following bonds in order of decreasing ionic character. Sb-Cl P-Cl As-Cl

Matter, Measurement, and Problem Solving

Atoms and Elements

Molecules, Compounds and Chemical Equations

Chemical Quantities and Aqueous Reactions

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding II: Molecular Shapes, Valence Bond Theory, and

Liquids, Solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Free Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Filters

Exam 9: Chemical Bonding I: Lewis Theory

Which of the following represent the Lewis structure for Cl?

Choose the best Lewis structure for SO42⁻.

Which of the following reactions is associated with the lattice energy of CaS (ΔH°latt)?

Describe the difference between a pure covalent bond and a polar covalent bond.

Choose the best Lewis structure for BF3.

Which of the following processes is exothermic?

Which of the following ionic compounds would be expected to have the highest lattice energy?

Choose the bond below that is most polar.

Which ionic compound would be expected to have the highest lattice energy?

Which of the following represent the Lewis structure for N?

In the Lewis structure of CH3OH,how many lone pairs of electrons are there?

Describe a covalent bond.

Using the data predict the lattice energy of NaCl

Choose the compound below that should have the lowest melting point according to the ionic bonding model.

Predict the formula of an ionic compound between aluminum and oxygen.

Using Lewis structures and formal charge,which of the following ions is most stable? OCN⁻ ONC⁻ NOC⁻

Which molecule or compound below contains a polar covalent bond?

Draw the Lewis structure for NO2⁻ including any valid resonance structures.Which of the following statements is true?

Which has the highest meting point?

Using periodic trends,place the following bonds in order of decreasing ionic character. Sb-Cl P-Cl As-Cl

Matter, Measurement, and Problem Solving

Atoms and Elements

Molecules, Compounds and Chemical Equations

Chemical Quantities and Aqueous Reactions

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding II: Molecular Shapes, Valence Bond Theory, and

Liquids, Solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Free Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Filters

Choose the best Lewis structure for SO₄²⁻.

Which of the following reactions is associated with the lattice energy of CaS (ΔH°_latt)?

Choose the best Lewis structure for BF₃.

In the Lewis structure of CH₃OH,how many lone pairs of electrons are there?

Draw the Lewis structure for NO₂⁻ including any valid resonance structures.Which of the following statements is true?