Question 1

Use the data given below to construct a Born-Haber cycle to determine the second ionization energy of Ca. DH°(kJ) 
Ca(s) → Ca(g) 193
Ca(g) → Ca⁺(g) + e⁻ 590.
2 O(g) → O2(g) -498
O(g) + e⁻ → O⁻(g) -141
O⁻(g) + e⁻ → O2⁻(g) 878
Ca(s) + 2(g) -498 O(g) + e⁻ → O⁻(g) -141 O⁻(g) + e⁻ → O2⁻(g) 878 Ca(s) +   O2(g) → CaO(s) -635 Ca2⁺(g) + O2⁻(g) → CaO(s) -3414 A)  1010 kJ B)  1757 kJ C)  1508 kJ D)  -3027 kJ E)  -1514 kJ" class="answers-bank-image d-inline" rel="preload" > O2(g) → CaO(s) -635
Ca2⁺(g) + O2⁻(g) → CaO(s) -3414

Accepted Answer

A)   1010 kJ
B)   1757 kJ
C)   1508 kJ
D)   -3027 kJ
E)   -1514 kJF) C) and D)
G) B) and C)

Question 2

Which compound has the highest carbon-carbon bond strength?

Accepted Answer

A)   CH3CH3
B)   CH2CH2
C)   HCCH
D)   All bond strengths are the same.E) B) and C)
F) B) and D)

Question 3

Use Lewis theory to determine the chemical formula for the compound formed between Al and F.

Accepted Answer

A)   Al3F2
B)   Al2F3
C)   AlF2
D)   AlF
E)   AlF3F) B) and E)
G) A) and B)

Question 4

Draw the Lewis structure for the acetate ion,CH3CO2⁻,including any important resonance structures.Label each atom with its formal charge.

Accepted Answer

There should be two equivalent...

Question 5

Use the data given below to construct a Born-Haber cycle to determine the lattice energy of CaO. DH°(kJ) 
Ca(s) → Ca(g) 193
Ca(g) → Ca⁺(g) + e⁻ 590
Ca⁺(g) → Ca2⁺(g) + e⁻ 1010
2 O(g) → O2(g) -498
O(g) + e⁻ → O⁻(g) -141
O⁻(g) + e⁻ → O2⁻(g) 878
Ca(s) + 2⁺(g) + e⁻ 1010 2 O(g) → O2(g) -498 O(g) + e⁻ → O⁻(g) -141 O⁻(g) + e⁻ → O2⁻(g) 878 Ca(s) +   O2(g) → CaO(s) -635 A)  -3414 kJ B)  +1397 kJ C)  -2667 kJ D)  +3028 kJ E)  -2144 kJ" class="answers-bank-image d-inline" rel="preload" > O2(g) → CaO(s) -635

Accepted Answer

A)   -3414 kJ
B)   +1397 kJ
C)   -2667 kJ
D)   +3028 kJ
E)   -2144 kJF) B) and E)
G) B) and D)

Question 6

Choose the best Lewis structure for NO3⁻.

Accepted Answer

A)  3⁻. 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
B)  3⁻. 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
C)  3⁻. 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
D)  3⁻. 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
E)  3⁻. 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >F) A) and D)
G) None of the above

Question 7

Use Lewis theory to determine the chemical formula for the compound formed between Al and O.

Accepted Answer

A)   Al3O2
B)   Al2O3
C)   AlO2
D)   Al2O
E)   AlOF) C) and D)
G) A) and E)

Question 8

Use the data given below to construct a Born-Haber cycle to determine the heat of formation of KCl. DH°(kJ) 
K(s) → K(g) 89
K(g) → K⁺(g) + e⁻ 418
Cl2(g) → 2 Cl(g) 244
Cl(g) + e⁻ → Cl⁻(g) -349
KCl(s) → K⁺(g) + Cl⁻(g) 717

Accepted Answer

A)   -1119 kJ
B)   -997 kJ
C)   -437 kJ
D)   +631 kJ
E)   +158 kJF) A) and B)
G) C) and D)

Question 9

Identify the compound with the smallest dipole moment in the gas phase.

Accepted Answer

A)   N2
B)   ClF
C)   HF
D)   NaCl
E)   CHCl3F) A) and B)
G) A) and C)

Question 10

Identify the compound with covalent bonding.

Accepted Answer

A)   KBr
B)   K
C)   H2Se
D)   Ne
E)   OF) A) and B)
G) A) and E)

Question 11

Choose the best Lewis structure for SO42⁻.

Accepted Answer

A)  42⁻. 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
B)  42⁻. 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
C)  42⁻. 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
D)  42⁻. 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
E)  42⁻. 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >F) B) and C)
G) B) and E)

Question 12

Which of the following represents the Lewis structure for Br⁻?

Accepted Answer

A)   
B)   
C)   
D)   
E)   F) C) and E)
G) D) and E)

Question 13

Choose the bond below that is the weakest.

Accepted Answer

A)   Na-Cl
B)   F-F
C)   C=N
D)   Li-Cl
E)   C=OF) None of the above
G) B) and D)

Question 14

Choose the best Lewis structure for NH4⁺.

Accepted Answer

A)  4⁺. 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
B)  4⁺. 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
C)  4⁺. 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
D)  4⁺. 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >
E)  4⁺. 
A)     
B)     
C)     
D)     
E)    " class="answers-bank-image d-inline" rel="preload" >F) All of the above
G) A) and D)

Question 15

Which element can expand its valence shell to accommodate more than eight electrons?

Accepted Answer

A)   B
B)   F
C)   S
D)   He
E)   HF) B) and E)
G) A) and E)

Question 16

Identify the ionic compound that is used as an image enhancer in x-rays.

Accepted Answer

A)   potassium permanganate
B)   barium sulfate
C)   lithium carbonate
D)   sodium chloride
E)   sodium bicarbonateF) All of the above
G) B) and E)

Question 17

Identify an ionic bond.

Accepted Answer

A)   Electrons are pooled.
B)   Electrons are shared.
C)   Electrons are transferred.
D)   Neutrons are gained.
E)   Electrons are lost.F) B) and D)
G) A) and E)

Question 18

Draw the Lewis structure for BrO3-.Make sure to include any important resonance structures.

Accepted Answer

Three equivalent resonance structures sh...

Question 19

Draw the best Lewis structure for the free radical,NO2.What is the formal charge on the N?

Accepted Answer

A)   +7
B)   +1
C)   -1
D)   +2
E)   +4F) B) and D)
G) All of the above

Question 20

Identify the number of bonding pairs and lone pairs of electrons in H2O2.

Accepted Answer

A)   2 bonding pairs and 2 lone pairs
B)   1 bonding pair and 3 lone pairs
C)   3 bonding pairs and 3 lone pairs
D)   3 bonding pairs and 4 lone pairs
E)   4 bonding pairs and 0 lone pairsF) A) and E)
G) None of the above

Exam 9: Chemical Bonding I: Lewis Theory

Use Lewis theory to determine the chemical formula for the compound formed between Al and F.

Correct Answer
verified

Which of the following represents the Lewis structure for Br⁻?

Correct Answer
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Identify the number of bonding pairs and lone pairs of electrons in H₂O₂.

Correct Answer
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Draw the best Lewis structure for the free radical,NO₂.What is the formal charge on the N?

Correct Answer
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Identify the compound with covalent bonding.

Correct Answer
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Identify an ionic bond.

Correct Answer
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Use Lewis theory to determine the chemical formula for the compound formed between Al and O.

Correct Answer
verified

Draw the Lewis structure for the acetate ion,CH₃CO₂⁻,including any important resonance structures.Label each atom with its formal charge.

Correct Answer
verified
There should be two equivalent...
View Answer

Correct Answer
verified

Which element can expand its valence shell to accommodate more than eight electrons?

Correct Answer
verified

Draw the Lewis structure for BrO₃^-.Make sure to include any important resonance structures.

Correct Answer
verified
Three equivalent resonance structures sh...
View Answer

Choose the best Lewis structure for NH₄⁺.

Correct Answer
verified

Use the data given below to construct a Born-Haber cycle to determine the heat of formation of KCl. DH°(kJ) K(s) → K(g) 89 K(g) → K⁺(g) + e⁻ 418 Cl₂(g) → 2 Cl(g) 244 Cl(g) + e⁻ → Cl⁻(g) -349 KCl(s) → K⁺(g) + Cl⁻(g) 717

Correct Answer
verified

Choose the best Lewis structure for SO₄²⁻.

Correct Answer
verified

Choose the bond below that is the weakest.

Correct Answer
verified

Which compound has the highest carbon-carbon bond strength?

Correct Answer
verified

Identify the ionic compound that is used as an image enhancer in x-rays.

Correct Answer
verified

Choose the best Lewis structure for NO₃⁻.

Correct Answer
verified

Identify the compound with the smallest dipole moment in the gas phase.

Correct Answer
verified

Correct Answer
verified

Exam 9: Chemical Bonding I: Lewis Theory

Use Lewis theory to determine the chemical formula for the compound formed between Al and F.

Correct AnswerverifiedShow Answer

Which of the following represents the Lewis structure for Br⁻?

Correct AnswerverifiedShow Answer

Identify the number of bonding pairs and lone pairs of electrons in H2O2.

Correct AnswerverifiedShow Answer

Draw the best Lewis structure for the free radical,NO2.What is the formal charge on the N?

Correct AnswerverifiedShow Answer

Identify the compound with covalent bonding.

Correct AnswerverifiedShow Answer

Identify an ionic bond.

Correct AnswerverifiedShow Answer

Use Lewis theory to determine the chemical formula for the compound formed between Al and O.

Correct AnswerverifiedShow Answer

Draw the Lewis structure for the acetate ion,CH3CO2⁻,including any important resonance structures.Label each atom with its formal charge.

Correct AnswerverifiedThere should be two equivalent...View AnswerShow Answer

Correct AnswerverifiedShow Answer

Which element can expand its valence shell to accommodate more than eight electrons?

Correct AnswerverifiedShow Answer

Draw the Lewis structure for BrO3-.Make sure to include any important resonance structures.

Correct AnswerverifiedThree equivalent resonance structures sh...View AnswerShow Answer

Choose the best Lewis structure for NH4⁺.

Correct AnswerverifiedShow Answer

Use the data given below to construct a Born-Haber cycle to determine the heat of formation of KCl. DH°(kJ) K(s) → K(g) 89 K(g) → K⁺(g) + e⁻ 418 Cl2(g) → 2 Cl(g) 244 Cl(g) + e⁻ → Cl⁻(g) -349 KCl(s) → K⁺(g) + Cl⁻(g) 717

Correct AnswerverifiedShow Answer

Choose the best Lewis structure for SO42⁻.

Correct AnswerverifiedShow Answer

Choose the bond below that is the weakest.

Correct AnswerverifiedShow Answer

Which compound has the highest carbon-carbon bond strength?

Correct AnswerverifiedShow Answer

Identify the ionic compound that is used as an image enhancer in x-rays.

Correct AnswerverifiedShow Answer

Choose the best Lewis structure for NO3⁻.

Correct AnswerverifiedShow Answer

Identify the compound with the smallest dipole moment in the gas phase.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Identify the number of bonding pairs and lone pairs of electrons in H₂O₂.

Correct Answer
verified

Draw the best Lewis structure for the free radical,NO₂.What is the formal charge on the N?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Draw the Lewis structure for the acetate ion,CH₃CO₂⁻,including any important resonance structures.Label each atom with its formal charge.

Correct Answer
verified
There should be two equivalent...
View Answer

Correct Answer
verified

Correct Answer
verified

Draw the Lewis structure for BrO₃^-.Make sure to include any important resonance structures.

Correct Answer
verified
Three equivalent resonance structures sh...
View Answer

Choose the best Lewis structure for NH₄⁺.

Correct Answer
verified

Use the data given below to construct a Born-Haber cycle to determine the heat of formation of KCl. DH°(kJ) K(s) → K(g) 89 K(g) → K⁺(g) + e⁻ 418 Cl₂(g) → 2 Cl(g) 244 Cl(g) + e⁻ → Cl⁻(g) -349 KCl(s) → K⁺(g) + Cl⁻(g) 717

Correct Answer
verified

Choose the best Lewis structure for SO₄²⁻.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Choose the best Lewis structure for NO₃⁻.

Correct Answer
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Correct Answer
verified

Correct Answer
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