Question 1

A positive slope for a region of a heating curve indicates that ____ in that region.

Accepted Answer

A)  no energy is being absorbed by the system 
B)  energy is being given off by the system, but it cannot be measured 
C)  energy is being absorbed by the system and is being used for a phase change 
D)  additional data is needed to explain this observation 
E)  energy is being absorbed by the system and is being used to increase the temperature 
A)  no energy is being absorbed by the system 
B)  energy is being given off by the system, but it cannot be measured 
C)  energy is being absorbed by the system and is being used for a phase change 
D)  additional data is needed to explain this observation 
E)  energy is being absorbed by the system and is being used to increase the temperature E

Question 2

Which group includes only exothermic processes?

Accepted Answer

A)  freezing, vaporization, deposition 
B)  freezing, condensation, deposition 
C)  melting, condensation, deposition 
D)  melting, evaporation, sublimation 
E)  melting, condensation, sublimation 
A)  freezing, vaporization, deposition 
B)  freezing, condensation, deposition 
C)  melting, condensation, deposition 
D)  melting, evaporation, sublimation 
E)  melting, condensation, sublimation B

Question 3

Exhibit 11-1 For the following question(s), consider the graphic below:   Refer to Exhibit 11-1. The transition from Phase I to Phase II is called

Accepted Answer

A)  melting. 
B)  freezing. 
C)  sublimation. 
D)  evaporation. 
E)  condensation. 
A)  melting. 
B)  freezing. 
C)  sublimation. 
D)  evaporation. 
E)  condensation. A

Question 4

Exhibit 11-1 For the following question(s), consider the graphic below:   Refer to Exhibit 11-1. The temperature at point b is the

Accepted Answer

A)  critical point. 
B)  triple point. 
C)  absolute freezing point. 
D)  normal freezing point. 
E)  normal boiling point. 
A)  critical point. 
B)  triple point. 
C)  absolute freezing point. 
D)  normal freezing point. 
E)  normal boiling point.

Question 5

Which choice is best? The unusually high enthalpy of fusion, enthalpy of vaporization, and specific heat capacity of water impact our natural environment because these properties

Accepted Answer

A)  prevent ice from sinking to the bottom of deep lakes in cold temperatures. 
B)  allow liquids to rise in plant stems through capillary action. 
C)  moderate temperature changes near large bodies of water. 
D)  cause water to be a greenhouse gas that contributes to natural global warming. 
E)  allow rapid transfer of thermal energy within living things. 
A)  prevent ice from sinking to the bottom of deep lakes in cold temperatures. 
B)  allow liquids to rise in plant stems through capillary action. 
C)  moderate temperature changes near large bodies of water. 
D)  cause water to be a greenhouse gas that contributes to natural global warming. 
E)  allow rapid transfer of thermal energy within living things.

Question 6

Which statement about crystalline solids is false?

Accepted Answer

A)  All crystal lattices are three-dimensional repetitions of one of seven types of unit cells. 
B)  A unit cell is the smallest part of a crystalline lattice that can reproduce the entire crystal structure. 
C)  The three types of cubic unit cells are simple, body-centered, and face-centered. 
D)  For a given size atom or monatomic ion, a body-centered cubic lattice has a higher unit cell density than a face-centered cubic lattice. 
E)  A unit cell can contain nonmetal atoms, metal atoms, monatomic ions, polyatomic ions, or molecules. 
A)  All crystal lattices are three-dimensional repetitions of one of seven types of unit cells. 
B)  A unit cell is the smallest part of a crystalline lattice that can reproduce the entire crystal structure. 
C)  The three types of cubic unit cells are simple, body-centered, and face-centered. 
D)  For a given size atom or monatomic ion, a body-centered cubic lattice has a higher unit cell density than a face-centered cubic lattice. 
E)  A unit cell can contain nonmetal atoms, metal atoms, monatomic ions, polyatomic ions, or molecules.

Question 7

The volatility of a liquid is increased by

Accepted Answer

A)  decreasing the temperature and increasing the atmospheric pressure. 
B)  decreasing the temperature and decreasing the atmospheric pressure. 
C)  increasing the temperature and increasing the atmospheric pressure. 
D)  increasing the temperature and decreasing the atmospheric pressure. 
E)  decreasing the temperature and maintaining the atmospheric pressure. 
A)  decreasing the temperature and increasing the atmospheric pressure. 
B)  decreasing the temperature and decreasing the atmospheric pressure. 
C)  increasing the temperature and increasing the atmospheric pressure. 
D)  increasing the temperature and decreasing the atmospheric pressure. 
E)  decreasing the temperature and maintaining the atmospheric pressure.

Question 8

According to band theory, an insulator is a material which has a(n) ____ valence band, a(n) ____ conduction band, and a ____ gap between them.

Accepted Answer

A)  completely filled; completely filled; wide 
B)  empty; partially filled; narrow 
C)  partially filled; partially filled; wide 
D)  partially filled; empty; narrow 
E)  partially filled; empty; wide 
A)  completely filled; completely filled; wide 
B)  empty; partially filled; narrow 
C)  partially filled; partially filled; wide 
D)  partially filled; empty; narrow 
E)  partially filled; empty; wide

Question 9

Which statement about network solids is false?

Accepted Answer

A)  Graphite and diamond are examples of network solids. 
B)  Network solids consist of nonmetal atoms connected by covalent bonds. 
C)  Graphite is an example of a three-dimensional network solid. 
D)  All atoms in a network solid are connected to all other atoms through a network of bonds. 
E)  Silicates are an important class of network solids. 
A)  Graphite and diamond are examples of network solids. 
B)  Network solids consist of nonmetal atoms connected by covalent bonds. 
C)  Graphite is an example of a three-dimensional network solid. 
D)  All atoms in a network solid are connected to all other atoms through a network of bonds. 
E)  Silicates are an important class of network solids.

Question 10

Which property of a liquid is paired with an incorrect explanation for that property?

Accepted Answer

A)  fluid, because the molecules retain some mobility 
B)  transmit pressure equally in all directions, because their molecules can move in all directions 
C)  capillary action, because the molecules are less attracted to each other than to the walls of the container 
D)  incompressible, because the molecules are relatively far apart 
E)  viscous, because the molecules can become entangled as they move past each other 
A)  fluid, because the molecules retain some mobility 
B)  transmit pressure equally in all directions, because their molecules can move in all directions 
C)  capillary action, because the molecules are less attracted to each other than to the walls of the container 
D)  incompressible, because the molecules are relatively far apart 
E)  viscous, because the molecules can become entangled as they move past each other

Question 11

Which choice is an example of an ionic solid?

Accepted Answer

A)  NaCl 
B)  crystal 
C)  iron 
D)  quartz 
E)  glass 
A)  NaCl 
B)  crystal 
C)  iron 
D)  quartz 
E)  glass

Question 12

Which choice is an example of a network solid?

Accepted Answer

A)  NaCl 
B)  crystal 
C)  iron 
D)  quartz 
E)  glass 
A)  NaCl 
B)  crystal 
C)  iron 
D)  quartz 
E)  glass

Question 13

The density of water has its maximum value at 4$\circ$C because

Accepted Answer

A)  the thermal motion of the molecules overcomes the hydrogen bonds and allows the molecules to approach each other more closely. 
B)  the thermal motion of the molecules is much greater than the energy of the hydrogen bonds and allows the molecules a great deal of freedom of motion. 
C)  covalent bonds begin breaking at this temperature. 
D)  the molecules are trapped in place by very strong hydrogen bonds. 
E)  the maximum number of hydrogen bonds exists between the molecules at this temperature. 
A)  the thermal motion of the molecules overcomes the hydrogen bonds and allows the molecules to approach each other more closely. 
B)  the thermal motion of the molecules is much greater than the energy of the hydrogen bonds and allows the molecules a great deal of freedom of motion. 
C)  covalent bonds begin breaking at this temperature. 
D)  the molecules are trapped in place by very strong hydrogen bonds. 
E)  the maximum number of hydrogen bonds exists between the molecules at this temperature.

Question 14

Which statement about heat of fusion and heat of condensation is correct?

Accepted Answer

A)  There is no general relationship between these two quantities and the values depend on the substance involved. 
B)  The heat of fusion is always less than the heat of condensation. 
C)  The heat of fusion is exactly equal to the heat of condensation. 
D)  The heat of fusion represents the heat released when a gas becomes a liquid, and the heat of condensation represents the heat required for a liquid to become a gas. 
E)  The heat of condensation is equal in magnitude but opposite in sign when compared to the heat of fusion. 
A)  There is no general relationship between these two quantities and the values depend on the substance involved. 
B)  The heat of fusion is always less than the heat of condensation. 
C)  The heat of fusion is exactly equal to the heat of condensation. 
D)  The heat of fusion represents the heat released when a gas becomes a liquid, and the heat of condensation represents the heat required for a liquid to become a gas. 
E)  The heat of condensation is equal in magnitude but opposite in sign when compared to the heat of fusion.

Question 15

Which group includes only endothermic processes?

Accepted Answer

A)  freezing, vaporization, deposition 
B)  freezing, condensation, deposition 
C)  melting, condensation, deposition 
D)  melting, evaporation, sublimation 
E)  melting, condensation, sublimation 
A)  freezing, vaporization, deposition 
B)  freezing, condensation, deposition 
C)  melting, condensation, deposition 
D)  melting, evaporation, sublimation 
E)  melting, condensation, sublimation

Question 16

Which choice is an example of a metallic solid?

Accepted Answer

A)  NaCl 
B)  crystal 
C)  iron 
D)  quartz 
E)  glass 
A)  NaCl 
B)  crystal 
C)  iron 
D)  quartz 
E)  glass

Question 17

The simplest explanation for the unusual properties of water in comparison to other compounds of similar structure and molar mass is

Accepted Answer

A)  hydrogen bonding. 
B)  covalent bonding. 
C)  trigonal pyramidal structure. 
D)  London forces. 
E)  its purity. 
A)  hydrogen bonding. 
B)  covalent bonding. 
C)  trigonal pyramidal structure. 
D)  London forces. 
E)  its purity.

Question 18

Boiling a liquid means

Accepted Answer

A)  the vapor pressure of the liquid equals the pressure exerted by its vapor phase. 
B)  a dynamic equilibrium exists between the liquid and vapor phase. 
C)  the vapor pressure of the liquid equals the external pressure above the liquid surface. 
D)  the molecular bonds in the liquid are broken rapidly. 
E)  the vapor pressure of the liquid is less than the external pressure above the liquid surface. 
A)  the vapor pressure of the liquid equals the pressure exerted by its vapor phase. 
B)  a dynamic equilibrium exists between the liquid and vapor phase. 
C)  the vapor pressure of the liquid equals the external pressure above the liquid surface. 
D)  the molecular bonds in the liquid are broken rapidly. 
E)  the vapor pressure of the liquid is less than the external pressure above the liquid surface.

Question 19

Which statement about metallic bonding is not correct?

Accepted Answer

A)  In the presence of an electrical field, the electrons migrate toward the positive charge. 
B)  The valence electrons move freely around the nuclei, allowing conduction of heat. 
C)  The flexibility of metals results from the mobility of the electron charge, which allows the nuclei to be moved without disrupting the overall structure of the metal. 
D)  It describes the freely moving valence electrons as an "electron sea." 
E)  The metal nuclei behave as negatively charged ions. 
A)  In the presence of an electrical field, the electrons migrate toward the positive charge. 
B)  The valence electrons move freely around the nuclei, allowing conduction of heat. 
C)  The flexibility of metals results from the mobility of the electron charge, which allows the nuclei to be moved without disrupting the overall structure of the metal. 
D)  It describes the freely moving valence electrons as an "electron sea." 
E)  The metal nuclei behave as negatively charged ions.

Question 20

Exhibit 11-1 For the following question(s), consider the graphic below:   Refer to Exhibit 11-1. The temperature at point a is the

Accepted Answer

A)  critical point. 
B)  triple point. 
C)  absolute freezing point. 
D)  normal freezing point. 
E)  normal boiling point. 
A)  critical point. 
B)  triple point. 
C)  absolute freezing point. 
D)  normal freezing point. 
E)  normal boiling point.

A positive slope for a region of a heating curve indicates that ____ in that region.

Which group includes only exothermic processes?

Exhibit 11-1 For the following question(s), consider the graphic below: Refer to Exhibit 11-1. The transition from Phase I to Phase II is called

Exhibit 11-1 For the following question(s), consider the graphic below: Refer to Exhibit 11-1. The temperature at point b is the

Which choice is best? The unusually high enthalpy of fusion, enthalpy of vaporization, and specific heat capacity of water impact our natural environment because these properties

Which statement about crystalline solids is false?

The volatility of a liquid is increased by

According to band theory, an insulator is a material which has a(n) valence band, a(n) conduction band, and a gap between them.

Which statement about network solids is false?

Which property of a liquid is paired with an incorrect explanation for that property?

Which choice is an example of an ionic solid?

Which choice is an example of a network solid?

The density of water has its maximum value at 4^$\circ$C because

Which statement about heat of fusion and heat of condensation is correct?

Which group includes only endothermic processes?

Which choice is an example of a metallic solid?

The simplest explanation for the unusual properties of water in comparison to other compounds of similar structure and molar mass is

Boiling a liquid means

Which statement about metallic bonding is not correct?

Exhibit 11-1 For the following question(s), consider the graphic below: Refer to Exhibit 11-1. The temperature at point a is the

The Nature of Chemistry

Atoms and Elements

Chemical Compounds

Quantities of Reactants and Products

Chemical Reactions

Energy and Chemical Reactions

Electron Configurations and the Periodic Table

Covalent Bonding

Molecular Structure

Gases and the Atmosphere

Chemical Kinetics: Rates of Reactions

Chemical Equilibrium

The Chemistry of Solutes and Solutions

Acids and Bases

Additional Aqueous Equilibria

Thermodynamics: Directionality of Chemical Reactions

Electrochemistry and Its Applications

Nuclear Chemistry

Filters

Exam 11: Liquids, Solids, and Materials

A positive slope for a region of a heating curve indicates that ____ in that region.

Which group includes only exothermic processes?

Exhibit 11-1 For the following question(s), consider the graphic below: Refer to Exhibit 11-1. The transition from Phase I to Phase II is called

Exhibit 11-1 For the following question(s), consider the graphic below: Refer to Exhibit 11-1. The temperature at point b is the

Which choice is best? The unusually high enthalpy of fusion, enthalpy of vaporization, and specific heat capacity of water impact our natural environment because these properties

Which statement about crystalline solids is false?

The volatility of a liquid is increased by

According to band theory, an insulator is a material which has a(n) ____ valence band, a(n) ____ conduction band, and a ____ gap between them.

Which statement about network solids is false?

Which property of a liquid is paired with an incorrect explanation for that property?

Which choice is an example of an ionic solid?

Which choice is an example of a network solid?

The density of water has its maximum value at 4 ∘\circ∘ C because

Which statement about heat of fusion and heat of condensation is correct?

Which group includes only endothermic processes?

Which choice is an example of a metallic solid?

The simplest explanation for the unusual properties of water in comparison to other compounds of similar structure and molar mass is

Boiling a liquid means

Which statement about metallic bonding is not correct?

Exhibit 11-1 For the following question(s), consider the graphic below: Refer to Exhibit 11-1. The temperature at point a is the

The Nature of Chemistry

Atoms and Elements

Chemical Compounds

Quantities of Reactants and Products

Chemical Reactions

Energy and Chemical Reactions

Electron Configurations and the Periodic Table

Covalent Bonding

Molecular Structure

Gases and the Atmosphere

Chemical Kinetics: Rates of Reactions

Chemical Equilibrium

The Chemistry of Solutes and Solutions

Acids and Bases

Additional Aqueous Equilibria

Thermodynamics: Directionality of Chemical Reactions

Electrochemistry and Its Applications

Nuclear Chemistry

Filters

According to band theory, an insulator is a material which has a(n) valence band, a(n) conduction band, and a gap between them.

The density of water has its maximum value at 4^$\circ$C because