Question 1

For the solid forms of the following elements, which one is most likely to be of the molecular type?

Accepted Answer

A)  Xe 
B)  C 
C)  Pb 
D)  S 
E)  Cr 
A)  Xe 
B)  C 
C)  Pb 
D)  S 
E)  Cr

Question 2

The strongest intermolecular interactions between hydrogen fluoride (HF) molecules arise from

Accepted Answer

A)  dipole-dipole forces. 
B)  London dispersion forces. 
C)  hydrogen bonding. 
D)  ion-dipole interactions. 
E)  ionic bonds. 
A)  dipole-dipole forces. 
B)  London dispersion forces. 
C)  hydrogen bonding. 
D)  ion-dipole interactions. 
E)  ionic bonds.

Question 3

In the packing of identical atoms with cubic unit cells, the packing efficiency increases as the coordination number increases.

Accepted Answer

A) True 
 B)False

Question 4

Which of the following has a boiling point that does not fit the general trend?

Accepted Answer

A)  NH3 
B)  PH3 
C)  AsH3 
D)  SbH3 
E)  BiH3 
A)  NH3 
B)  PH3 
C)  AsH3 
D)  SbH3 
E)  BiH3

Question 5

Ammonia's unusually high melting point is the result of

Accepted Answer

A)  dipole-dipole forces. 
B)  London dispersion forces. 
C)  hydrogen bonding. 
D)  covalent bonding. 
E)  ionic bonding. 
A)  dipole-dipole forces. 
B)  London dispersion forces. 
C)  hydrogen bonding. 
D)  covalent bonding. 
E)  ionic bonding.

Question 6

Which of the following pairs is arranged with the particle of higher polarizability listed first?

Accepted Answer

A)  Se2-, S2- 
B)  I, I- 
C)  Mg2+, Mg 
D)  Br, I 
E)  None of these choices are correct. 
A)  Se2-, S2- 
B)  I, I- 
C)  Mg2+, Mg 
D)  Br, I 
E)  None of these choices are correct.

Question 7

Hexagonal close packing of identical atoms occurs when close-packed layers are stacked in an abcabc... arrangement.

Accepted Answer

A) True 
 B)False

Question 8

The maximum number of phases of a single substance which can coexist in equilibrium is two.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following statements about ceramics is incorrect?

Accepted Answer

A)  Silicon carbide has a diamond-like structure. 
B)  Boron nitride can exist in both diamond-like and graphite-like forms. 
C)  Silicon carbide can be prepared by direct reaction of silicon and carbon. 
D)  Superconducting ceramics present manufacturing difficulties owing to their brittleness. 
E)  Superconducting ceramic compounds usually incorporate cobalt in a key role. 
A)  Silicon carbide has a diamond-like structure. 
B)  Boron nitride can exist in both diamond-like and graphite-like forms. 
C)  Silicon carbide can be prepared by direct reaction of silicon and carbon. 
D)  Superconducting ceramics present manufacturing difficulties owing to their brittleness. 
E)  Superconducting ceramic compounds usually incorporate cobalt in a key role.

Question 10

In an ionic solid MX consisting of the monatomic ions, M+ and X-, the coordination number of M+ is

Accepted Answer

A)  1. 
B)  2. 
C)  6. 
D)  8. 
E)  It is impossible to predict without knowing the crystal structure of MX. 
A)  1. 
B)  2. 
C)  6. 
D)  8. 
E)  It is impossible to predict without knowing the crystal structure of MX.

For the solid forms of the following elements, which one is most likely to be of the molecular type?

The strongest intermolecular interactions between hydrogen fluoride (HF) molecules arise from

In the packing of identical atoms with cubic unit cells, the packing efficiency increases as the coordination number increases.

Which of the following has a boiling point that does not fit the general trend?

Ammonia's unusually high melting point is the result of

Which of the following pairs is arranged with the particle of higher polarizability listed first?

Hexagonal close packing of identical atoms occurs when close-packed layers are stacked in an abcabc... arrangement.

The maximum number of phases of a single substance which can coexist in equilibrium is two.

Which of the following statements about ceramics is incorrect?

In an ionic solid MX consisting of the monatomic ions, M⁺ and X^-, the coordination number of M⁺ is

Keys to Studying Chemistry Definitions, Units, and Problem Solving

The Components of Matter

Stoichiometry of Formulas and Equations

Three Major Classes of Chemical Reactions

Gases and the Kinetic-Molecular Theory

Thermochemistry Energy Flow and Chemical Change

Quantum Theory and Atomic Structure

Electron Configuration and Chemical Periodicity

Models of Chemical Bonding

The Shapes of Molecules

Theories of Covalent Bonding

The Properties of Mixtures Solutions and Colloids

Periodic Patterns in the Main-Group Elements

Organic Compounds and the Atomic Properties of Carbon

Kinetics Rates and Mechanisms of Chemical Reactions

Equilibrium the Extent of Chemical Reactions

Acid-Base Equilibria

Ionic Equilibria in Aqueous Systems

Thermodynamics Entropy, Free Energy, and Reaction Direction

Electrochemistry Chemical Change and Electrical Work

The Elements in Nature and Industry

Transition Elements and Their Coordination Compounds

Nuclear Reactions and Their Applications

Filters

Exam 12: Intermolecular Forces Liquids, Solids, and Phase Changes

For the solid forms of the following elements, which one is most likely to be of the molecular type?

The strongest intermolecular interactions between hydrogen fluoride (HF) molecules arise from

In the packing of identical atoms with cubic unit cells, the packing efficiency increases as the coordination number increases.

Which of the following has a boiling point that does not fit the general trend?

Ammonia's unusually high melting point is the result of

Which of the following pairs is arranged with the particle of higher polarizability listed first?

Hexagonal close packing of identical atoms occurs when close-packed layers are stacked in an abcabc... arrangement.

The maximum number of phases of a single substance which can coexist in equilibrium is two.

Which of the following statements about ceramics is incorrect?

In an ionic solid MX consisting of the monatomic ions, M+ and X-, the coordination number of M+ is

Keys to Studying Chemistry Definitions, Units, and Problem Solving

The Components of Matter

Stoichiometry of Formulas and Equations

Three Major Classes of Chemical Reactions

Gases and the Kinetic-Molecular Theory

Thermochemistry Energy Flow and Chemical Change

Quantum Theory and Atomic Structure

Electron Configuration and Chemical Periodicity

Models of Chemical Bonding

The Shapes of Molecules

Theories of Covalent Bonding

The Properties of Mixtures Solutions and Colloids

Periodic Patterns in the Main-Group Elements

Organic Compounds and the Atomic Properties of Carbon

Kinetics Rates and Mechanisms of Chemical Reactions

Equilibrium the Extent of Chemical Reactions

Acid-Base Equilibria

Ionic Equilibria in Aqueous Systems

Thermodynamics Entropy, Free Energy, and Reaction Direction

Electrochemistry Chemical Change and Electrical Work

The Elements in Nature and Industry

Transition Elements and Their Coordination Compounds

Nuclear Reactions and Their Applications

Filters

In an ionic solid MX consisting of the monatomic ions, M⁺ and X^-, the coordination number of M⁺ is