Question 1

Write the Lewis dot symbol for the chloride ion.

Accepted Answer

The answer of Write the Lewis dot symbol for the...

Question 2

The Lewis dot symbol for the S 2- ion is

Accepted Answer

A)    2- ion is 
A)       
B)       2- 
C)  S2- 
D)  -     - 2- 
E)       -" class="answers-bank-image d-inline" rel="preload" >  
B)    2- ion is 
A)       
B)       2- 
C)  S2- 
D)  -     - 2- 
E)       -" class="answers-bank-image d-inline" rel="preload" >   2-
C)  S2-
D)  -  2- ion is 
A)       
B)       2- 
C)  S2- 
D)  -     - 2- 
E)       -" class="answers-bank-image d-inline" rel="preload" >   - 2-
E)    2- ion is 
A)       
B)       2- 
C)  S2- 
D)  -     - 2- 
E)       -" class="answers-bank-image d-inline" rel="preload" >   -F) B) and E)
G) A) and D)

Question 3

Which one of the following is most likely to be an ionic compound?

Accepted Answer

A)  ClF3
B)  FeCl3
C)  NH3
D)  PF3
E)  SO3F) A) and D)
G) B) and D) B

Question 4

The number of resonance structures for the nitrate ion that satisfy the octet rule is

Accepted Answer

A)  1
B)  2
C)  3
D)  4
E)  None of theseF) B) and E)
G) A) and E)

Question 5

Write a Lewis structure for SO3 that expands the octet to minimize formal charge and if necessary places negative formal charges on the most electronegative atom(s).

Accepted Answer

Question 6

Of the species NO2, NO, and N2, only NO2 is an exception to the octet rule.

Accepted Answer

A) True 
 B)False

Question 7

Assuming the octet rule is obeyed, how many covalent bonds will an oxygen atom form to give a formal charge of zero?

Accepted Answer

A)  0
B)  1
C)  2
D)  3
E)  4F) A) and B)
G) C) and D)

Question 8

Complete this statement: Coulomb's law states that the magnitude of the force of interaction between two charged bodies is

Accepted Answer

A)  directly proportional to the product of the charges on the bodies and directly proportional to the distance separating them.
B)  directly proportional to the product of the charges on the bodies, and inversely proportional to the square of the distance separating them.
C)  inversely proportional to the product of the charges on the bodies, and directly proportional to the square of the distance separating them.
D)  directly proportional to the sum of the charges on the bodies, and inversely proportional to the square of the distance separating them.E) All of the above
F) C) and D)

Question 9

Use the Born-Haber cycle to calculate the lattice energy of MgO (s) given the following data:  Δ\DeltaΔ H(sublimation) Mg = 130 kJ/mol
I1 (Mg) = 738.1 kJ/mol
I2 (Mg) = 1450 kJ/mol
Bond energy (O=O) = 498.7 kJ/mol
EA (O) = 141 kJ/mol
EA (O-) = -780 kJ/mol
 Δ\DeltaΔ H 1 (Mg) = 738.1 kJ/mol I2 (Mg) = 1450 kJ/mol Bond energy (O=O) = 498.7 kJ/mol EA (O) = 141 kJ/mol EA (O-) = -780 kJ/mol  \Delta H     (MgO(s) ) = -601.8 kJ/mol A) 2200 kJ/mol B) 2800 kJ/mol C) 3200 kJ/mol D) 3800 kJ/mol E) 4100 kJ/mol " class="answers-bank-image d-inline" rel="preload" >  
(MgO(s) ) = -601.8 kJ/mol

Accepted Answer

A)  2200 kJ/mol
B)  2800 kJ/mol
C)  3200 kJ/mol
D)  3800 kJ/mol
E)  4100 kJ/mol F) D) and E)
G) C) and D)

Question 10

The azide ion, N3-, is very reactive although it is isoelectronic with the very stable CO2 molecule.This reactivity is reasonable considering that

Accepted Answer

A)  a Lewis structure cannot be written for the azide ion that has nitrogen formal charges of zero.
B)  there is no valid Lewis structure possible for the azide ion.
C)  there are resonance structures for azide ion but not for carbon dioxide.
D)  nitrogen cannot form multiple bonds.
E)  charged species always decompose in solution.F) A) and C)
G) A) and E)

Question 11

Which of the following solids would have the highest melting point?

Accepted Answer

A)  NaI
B)  NaF
C)  MgO
D)  MgCl2
E)  KFF) A) and C)
G) B) and D)

Question 12

A molecule with two resonance structures is shifting quickly back and forth from one structure to the other

Accepted Answer

A) True 
 B)False

Question 13

Which one of the following is most likely to be an ionic compound?

Accepted Answer

A)  NCl3
B)  BaCl2
C)  CO
D)  SO2
E)  SF4F) A) and B)
G) None of the above

Question 14

Arrange the following bonds in order of increasing ionic character

Accepted Answer

A)  B - C 
B)  C - C 
C)  C - C 
D)  C - O 
E)  C - N < C - C < B - C < C - OF) A) and E)
G) A) and C)

Question 15

What type of bonding is present in the molecule NH2NH2 (ionic, covalent, or both)?

Accepted Answer

Question 16

Arrange the elements C, O, and H in order of increasing electronegativity

Accepted Answer

A)  C 
B)  H 
C)  C 
D)  O < C < H E H < O < CE) A) and D)
F) A) and C)

Question 17

List all types of bonding present in the molecule SO3  I.ionic bond
II.polar covalent bond
III.nonpolar covalent bond

Accepted Answer

A)  I only
B)  II only
C)  III only
D)  I and II
E)  II and IIIF) B) and E)
G) B) and D)

Question 18

Arrange the following bonds in order of increasing ionic character

Accepted Answer

A)  C - F 
B)  C - F 
C)  O - F 
D)  H - F 
E)  Na - F < H - F < C - F < O - FF) A) and C)
G) All of the above

Question 19

BeF42- is called the fluoberyllate ion.The formal charge on the beryllium atom in this ion is

Accepted Answer

A)  -2
B)  -1
C)  0
D)  +1
E)  +2F) None of the above
G) A) and B) A

Question 20

Use bond energies to estimate the enthalpy of formation of HBr(g) . BE(H-H) = 436 kJ/mol
BE(Br-Br) = 192 kJ/mol
BE(H-Br) = 366 kJ/mol

Accepted Answer

A)  +262 kJ/mol
B)  +104 kJ/mol
C)  +52 kJ/mol
D)  -52 kJ/mol
E)  -104 kJ/molF) A) and B)
G) C) and D)

Exam 9: Chemical Bonding I: Basic Concepts

Write the Lewis dot symbol for the chloride ion.

Correct Answer
verified
11ea7cbf_8f08_aef8_a2ab_73332304535d_TB3246_00

The Lewis dot symbol for the S^2- ion is

Correct Answer
verified

Which one of the following is most likely to be an ionic compound?

Correct Answer
verified
B

The number of resonance structures for the nitrate ion that satisfy the octet rule is

Correct Answer
verified

Write a Lewis structure for SO₃ that expands the octet to minimize formal charge and if necessary places negative formal charges on the most electronegative atom(s).

Correct Answer
verified

Of the species NO₂, NO, and N₂, only NO₂ is an exception to the octet rule.

Correct Answer
verified

Assuming the octet rule is obeyed, how many covalent bonds will an oxygen atom form to give a formal charge of zero?

Correct Answer
verified

Complete this statement: Coulomb's law states that the magnitude of the force of interaction between two charged bodies is

Correct Answer
verified

Correct Answer
verified

The azide ion, N₃^-, is very reactive although it is isoelectronic with the very stable CO₂ molecule.This reactivity is reasonable considering that

Correct Answer
verified

Which of the following solids would have the highest melting point?

Correct Answer
verified

A molecule with two resonance structures is shifting quickly back and forth from one structure to the other

Correct Answer
verified

Which one of the following is most likely to be an ionic compound?

Correct Answer
verified

Arrange the following bonds in order of increasing ionic character

Correct Answer
verified

What type of bonding is present in the molecule NH₂NH₂ (ionic, covalent, or both)?

Correct Answer
verified

Arrange the elements C, O, and H in order of increasing electronegativity

Correct Answer
verified

List all types of bonding present in the molecule SO₃ I.ionic bond II.polar covalent bond III.nonpolar covalent bond

Correct Answer
verified

Arrange the following bonds in order of increasing ionic character

Correct Answer
verified

BeF₄^2- is called the fluoberyllate ion.The formal charge on the beryllium atom in this ion is

Correct Answer
verified
A

Use bond energies to estimate the enthalpy of formation of HBr(g) . BE(H-H) = 436 kJ/mol BE(Br-Br) = 192 kJ/mol BE(H-Br) = 366 kJ/mol

Correct Answer
verified

Exam 9: Chemical Bonding I: Basic Concepts

Write the Lewis dot symbol for the chloride ion.

Correct Answerverified11ea7cbf_8f08_aef8_a2ab_73332304535d_TB3246_00

The Lewis dot symbol for the S 2- ion is

Correct AnswerverifiedShow Answer

Which one of the following is most likely to be an ionic compound?

Correct AnswerverifiedB

The number of resonance structures for the nitrate ion that satisfy the octet rule is

Correct AnswerverifiedShow Answer

Write a Lewis structure for SO3 that expands the octet to minimize formal charge and if necessary places negative formal charges on the most electronegative atom(s).

Correct AnswerverifiedShow Answer

Of the species NO2, NO, and N2, only NO2 is an exception to the octet rule.

Correct AnswerverifiedShow Answer

Assuming the octet rule is obeyed, how many covalent bonds will an oxygen atom form to give a formal charge of zero?

Correct AnswerverifiedShow Answer

Complete this statement: Coulomb's law states that the magnitude of the force of interaction between two charged bodies is

Correct AnswerverifiedShow Answer

Use the Born-Haber cycle to calculate the lattice energy of MgO (s) given the following data: Δ\DeltaΔ H(sublimation) Mg = 130 kJ/mol I1 (Mg) = 738.1 kJ/mol I2 (Mg) = 1450 kJ/mol Bond energy (O=O) = 498.7 kJ/mol EA (O) = 141 kJ/mol EA (O-) = -780 kJ/mol Δ\DeltaΔ H (MgO(s) ) = -601.8 kJ/mol

Correct AnswerverifiedShow Answer

The azide ion, N3-, is very reactive although it is isoelectronic with the very stable CO2 molecule.This reactivity is reasonable considering that

Correct AnswerverifiedShow Answer

Which of the following solids would have the highest melting point?

Correct AnswerverifiedShow Answer

A molecule with two resonance structures is shifting quickly back and forth from one structure to the other

Correct AnswerverifiedShow Answer

Which one of the following is most likely to be an ionic compound?

Correct AnswerverifiedShow Answer

Arrange the following bonds in order of increasing ionic character

Correct AnswerverifiedShow Answer

What type of bonding is present in the molecule NH2NH2 (ionic, covalent, or both)?

Correct AnswerverifiedShow Answer

Arrange the elements C, O, and H in order of increasing electronegativity

Correct AnswerverifiedShow Answer

List all types of bonding present in the molecule SO3 I.ionic bond II.polar covalent bond III.nonpolar covalent bond

Correct AnswerverifiedShow Answer

Arrange the following bonds in order of increasing ionic character

Correct AnswerverifiedShow Answer

BeF42- is called the fluoberyllate ion.The formal charge on the beryllium atom in this ion is

Correct AnswerverifiedA

Use bond energies to estimate the enthalpy of formation of HBr(g) . BE(H-H) = 436 kJ/mol BE(Br-Br) = 192 kJ/mol BE(H-Br) = 366 kJ/mol

Correct AnswerverifiedShow Answer

Correct Answer
verified
11ea7cbf_8f08_aef8_a2ab_73332304535d_TB3246_00

The Lewis dot symbol for the S^2- ion is

Correct Answer
verified

Correct Answer
verified
B

Correct Answer
verified

Write a Lewis structure for SO₃ that expands the octet to minimize formal charge and if necessary places negative formal charges on the most electronegative atom(s).

Correct Answer
verified

Of the species NO₂, NO, and N₂, only NO₂ is an exception to the octet rule.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

The azide ion, N₃^-, is very reactive although it is isoelectronic with the very stable CO₂ molecule.This reactivity is reasonable considering that

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

What type of bonding is present in the molecule NH₂NH₂ (ionic, covalent, or both)?

Correct Answer
verified

Correct Answer
verified

List all types of bonding present in the molecule SO₃ I.ionic bond II.polar covalent bond III.nonpolar covalent bond

Correct Answer
verified

Correct Answer
verified

BeF₄^2- is called the fluoberyllate ion.The formal charge on the beryllium atom in this ion is

Correct Answer
verified
A

Correct Answer
verified