Question 1

Place the following in order of decreasing magnitude of lattice energy. KF MgS RbI

Accepted Answer

A)  RbI > KF > MgS 
B)  RbI > MgS > KF 
C)  MgS > RbI > KF 
D)  KF > RbI > MgS 
E)  MgS > KF > RbI 
A)  RbI > KF > MgS 
B)  RbI > MgS > KF 
C)  MgS > RbI > KF 
D)  KF > RbI > MgS 
E)  MgS > KF > RbI E

Question 2

The compound ClF contains ________.

Accepted Answer

A)  ionic bonds 
B)  nonpolar covalent bonds 
C)  polar covalent bonds with partial negative charges on the F atoms 
D)  polar covalent bonds with partial negative charges on the Cl atoms 
A)  ionic bonds 
B)  nonpolar covalent bonds 
C)  polar covalent bonds with partial negative charges on the F atoms 
D)  polar covalent bonds with partial negative charges on the Cl atoms C

Question 3

Which of the following represent the Lewis structure for N?

Accepted Answer

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

Question 4

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

Accepted Answer

A)  1 bonding pair and 1 lone pair 
B)  1 bonding pair and 2 lone pairs 
C)  2 bonding pairs and 2 lone pairs 
D)  2 bonding pairs and 1 lone pair 
E)  3 bonding pairs and 2 lone pairs 
A)  1 bonding pair and 1 lone pair 
B)  1 bonding pair and 2 lone pairs 
C)  2 bonding pairs and 2 lone pairs 
D)  2 bonding pairs and 1 lone pair 
E)  3 bonding pairs and 2 lone pairs

Question 5

Which of the following statements is TRUE?

Accepted Answer

A)  A covalent bond is formed through the transfer of electrons from one atom to another. 
B)  A pair of electrons involved in a covalent bond are sometimes referred to as "lone pairs." 
C)  It is not possible for two atoms to share more than two electrons. 
D)  Single bonds are shorter than double bonds. 
E)  A covalent bond has a lower potential energy than the two separate atoms. 
A)  A covalent bond is formed through the transfer of electrons from one atom to another. 
B)  A pair of electrons involved in a covalent bond are sometimes referred to as "lone pairs." 
C)  It is not possible for two atoms to share more than two electrons. 
D)  Single bonds are shorter than double bonds. 
E)  A covalent bond has a lower potential energy than the two separate atoms.

Question 6

Place the following in order of increasing bond length. C-F C-S C-Cl

Accepted Answer

A)  C-S < C-Cl < C-F 
B)  C-Cl < C-F < C-S 
C)  C-F < C-S < C-Cl 
D)  C-F < C-Cl < C-S 
E)  C-S < C-F < C-Cl 
A)  C-S < C-Cl < C-F 
B)  C-Cl < C-F < C-S 
C)  C-F < C-S < C-Cl 
D)  C-F < C-Cl < C-S 
E)  C-S < C-F < C-Cl

Question 7

Choose the best Lewis structure for SO42⁻.

Accepted Answer

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

Question 8

Place the following in order of decreasing bond length. H-F H-I H-Br

Accepted Answer

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

Question 9

In the best Lewis structure for CN-, what is the formal charge on the N atom?

Accepted Answer

A)  -1 
B)  0 
C)  +1 
D)  +2 
A)  -1 
B)  0 
C)  +1 
D)  +2

Question 10

A single covalent bond contains ________ of electrons.

Accepted Answer

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

Question 11

Place the following in order of decreasing magnitude of lattice energy. K2O Rb2S Li2O

Accepted Answer

A)  Li2O > K2O > Rb2S 
B)  Li2O > Rb2S > K2O 
C)  Rb2S > K2O > Li2O 
D)  Rb2S > Li2O > K2O 
E)  K2O > Li2O > Rb2S 
A)  Li2O > K2O > Rb2S 
B)  Li2O > Rb2S > K2O 
C)  Rb2S > K2O > Li2O 
D)  Rb2S > Li2O > K2O 
E)  K2O > Li2O > Rb2S

Question 12

Place the following in order of increasing magnitude of lattice energy. MgO LiI CaS

Accepted Answer

A)  CaS < MgO < LiI 
B)  LiI < CaS < MgO 
C)  MgO < CaS < LiI 
D)  LiI < MgO < CaS 
E)  MgO < LiI < CaS 
A)  CaS < MgO < LiI 
B)  LiI < CaS < MgO 
C)  MgO < CaS < LiI 
D)  LiI < MgO < CaS 
E)  MgO < LiI < CaS

Question 13

Which of the following processes is exothermic?

Accepted Answer

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

Question 14

Draw the best Lewis structure for Cl3⁻. What is the formal charge on the central Cl atom?

Accepted Answer

A)  -1 
B)  0 
C)  +1 
D)  +2 
E)  -2 
A)  -1 
B)  0 
C)  +1 
D)  +2 
E)  -2

Question 15

How many lone pairs of electrons are on the I atom in IF4+?

Accepted Answer

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

Question 16

Use Lewis theory to determine the chemical formula for the compound formed between Mg and Br.

Accepted Answer

A)  MgBr 
B)  Mg2Br3 
C)  Mg3Br2 
D)  MgBr2 
E)  Mg2Br 
A)  MgBr 
B)  Mg2Br3 
C)  Mg3Br2 
D)  MgBr2 
E)  Mg2Br

Question 17

Choose the best Lewis structure for BF3.

Accepted Answer

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

Question 18

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 19

Identify the compound or element with metallic bonding.

Accepted Answer

A)  NaCl 
B)  Li 
C)  H2O 
D)  He 
E)  S 
A)  NaCl 
B)  Li 
C)  H2O 
D)  He 
E)  S

Question 20

Identify the number of valence electrons for ICl5.

Accepted Answer

A)  36 
B)  40 
C)  42 
D)  44 
E)  46 
A)  36 
B)  40 
C)  42 
D)  44 
E)  46

Exam 9: Chemical Bonding I: Lewis Theory

Place the following in order of decreasing magnitude of lattice energy. KF MgS RbI

The compound ClF contains ________.

Which of the following represent the Lewis structure for N?

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

Which of the following statements is TRUE?

Place the following in order of increasing bond length. C-F C-S C-Cl

Choose the best Lewis structure for SO42⁻.

Place the following in order of decreasing bond length. H-F H-I H-Br

In the best Lewis structure for CN-, what is the formal charge on the N atom?

A single covalent bond contains ________ of electrons.

Place the following in order of decreasing magnitude of lattice energy. K2O Rb2S Li2O

Place the following in order of increasing magnitude of lattice energy. MgO LiI CaS

Which of the following processes is exothermic?

Draw the best Lewis structure for Cl3⁻. What is the formal charge on the central Cl atom?

How many lone pairs of electrons are on the I atom in IF4+?

Use Lewis theory to determine the chemical formula for the compound formed between Mg and Br.

Choose the best Lewis structure for BF3.

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

Identify the compound or element with metallic bonding.

Identify the number of valence electrons for ICl5.

Units of Measurement for Physical and Chemical Change

Atoms and Elements

Molecules, Compounds, and Nomenclature

Chemical Reactions and Stoichiometry

Gases

Thermochemistry

The Quantum-Mechanical Model of the Atom

Periodic Properties of the Elements

Chemical Bonding Ii: Molecular Shapes, Valence Bond Theory, and Molecular Orbital Theory

Liquids, Solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Gibbs Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Organic Chemistry I: Structures

Organic Chemistry Ii: Reactions

Biochemistry

Chemistry of the Nonmetals

Metals and Metallurgy

Transition Metals and Coordination Compounds

Filters

The compound ClFcontains ________.

Choose the best Lewis structure for SO₄²⁻.

In the best Lewis structure for CN^-, what is the formal charge on the N atom?

Place the following in order of decreasing magnitude of lattice energy. K₂O Rb₂S Li₂O

Draw the best Lewis structure for Cl₃⁻. What is the formal charge on the central Cl atom?

How many lone pairs of electrons are on the I atom in IF₄⁺?

Choose the best Lewis structure for BF₃.

Identify the number of valence electrons for ICl₅.