Question 1

Solids usually have much greater densities than gases because molecules of a solid are much farther apart.

Accepted Answer

A) True 
 B)False

Question 2

You can increase the vapor pressure of a liquid by:

Accepted Answer

A) increasing temperature. 
B) increasing the viscosity. 
C) establishing dynamic equilibrium. 
D) using a nonvolatile compound. 
E) all of the above 
A) increasing temperature. 
B) increasing the viscosity. 
C) establishing dynamic equilibrium. 
D) using a nonvolatile compound. 
E) all of the above

Question 3

Which atomic solid has the highest melting point?

Accepted Answer

A) Cu 
B) Si 
C) Xe 
D) Fe 
E) not enough information 
A) Cu 
B) Si 
C) Xe 
D) Fe 
E) not enough information

Question 4

Intermolecular forces are the attractive forces between atoms within a compound.

Accepted Answer

A) True 
 B)False

Question 5

All intermolecular forces are broken when a liquid vaporizes into a gas.

Accepted Answer

A) True 
 B)False

Question 6

Compare a small pot of water that is boiling vigorously to a large pot of water that is boiling gently.Which statement is TRUE?

Accepted Answer

A) The small pot is boiling at higher temperature than the large pot. 
B) The large pot is boiling at a higher temperature than the small pot. 
C) Both pots are boiling at the same temperature. 
D) The vapor pressure of the liquid is greater than the pressure above the pot in each case. 
E) none of the above 
A) The small pot is boiling at higher temperature than the large pot. 
B) The large pot is boiling at a higher temperature than the small pot. 
C) Both pots are boiling at the same temperature. 
D) The vapor pressure of the liquid is greater than the pressure above the pot in each case. 
E) none of the above

Question 7

Compounds with very high vapor pressures must have very minimal intermolecular forces.

Accepted Answer

A) True 
 B)False

Question 8

How many kJ of heat are needed to completely vaporize 23.4 g of  
O? The heat of vaporization for water at the boiling point is

Accepted Answer

A) 31.2 
B) 52.8 
C) 23.4 
D) 2.26 
E) none of the above 
A) 31.2 
B) 52.8 
C) 23.4 
D) 2.26 
E) none of the above

Question 9

When you make ice cubes:

Accepted Answer

A) it is an endothermic process. 
B) it is an exothermic process. 
C) the heat of vaporization must be removed. 
D) the process is referred to scientifically as sublimation. 
E) none of the above 
A) it is an endothermic process. 
B) it is an exothermic process. 
C) the heat of vaporization must be removed. 
D) the process is referred to scientifically as sublimation. 
E) none of the above

Question 10

What are the principal forces holding ice together?

Accepted Answer

A) dispersion forces only 
B) electrostatic attraction 
C) intermolecular forces 
D) sea of electrons 
E) none of the above 
A) dispersion forces only 
B) electrostatic attraction 
C) intermolecular forces 
D) sea of electrons 
E) none of the above

Question 11

Which compound will have the highest boiling point?

Accepted Answer

A) C   
B) C  
C
   
C) C  
C(O)C
   
D)   
C
  
OH 
E) not enough information 
A) C   
B) C  
C
   
C) C  
C(O)C
   
D)   
C
  
OH 
E) not enough information

Question 12

Which state of matter has a low density and an indefinite volume?

Accepted Answer

A) solids 
B) liquids 
C) gases 
D) both solids and liquids 
E) none of the above 
A) solids 
B) liquids 
C) gases 
D) both solids and liquids 
E) none of the above

Question 13

Water has a heat of vaporization of 44.0 kJ/mol while the chemical diethyl ether has a heat of vaporization of 27.1 kJ/mol.This shows that one mole of water would vaporize more easily than would one mole of diethyl ether.

Accepted Answer

A) True 
 B)False

Question 14

How many kJ of heat are needed to completely vaporize 3.30 moles of  
O? The heat of vaporization for water at the boiling point is

Accepted Answer

A) 12.3 
B) 134 
C) 67.0 
D) 2.26 
E) none of the above 
A) 12.3 
B) 134 
C) 67.0 
D) 2.26 
E) none of the above

Question 15

Substance A is a molecular compound that dissolves in gasoline but not in water.The molecules of A are very likely:

Accepted Answer

A) metallic. 
B) nonmetallic. 
C) polar. 
D) nonpolar. 
E) none of the above 
A) metallic. 
B) nonmetallic. 
C) polar. 
D) nonpolar. 
E) none of the above

Question 16

Intermolecular forces are responsible for:

Accepted Answer

A) the taste sensations. 
B) the shape of protein molecules. 
C) the function of DNA. 
D) the existence of liquids and solids. 
E) all of the above 
A) the taste sensations. 
B) the shape of protein molecules. 
C) the function of DNA. 
D) the existence of liquids and solids. 
E) all of the above

Question 17

The shapes of protein molecules are determined by intermolecular forces.

Accepted Answer

A) True 
 B)False

Question 18

The amount of heat required to melt one mole of a solid is called the:

Accepted Answer

A) heat of vaporization. 
B) heat of fusion. 
C) heating curve. 
D) cooling curve. 
E) none of the above 
A) heat of vaporization. 
B) heat of fusion. 
C) heating curve. 
D) cooling curve. 
E) none of the above

Question 19

Which substance below is an ionic solid?

Accepted Answer

A) Cu (s) 
B) H2O (s) 
C) MgO (s) 
D) C6H12O6 (s) 
E) none of the above 
A) Cu (s) 
B) H2O (s) 
C) MgO (s) 
D) C6H12O6 (s) 
E) none of the above

Question 20

Dispersion forces result from the temporary distortion of the electron cloud in an atom or molecule which increases in magnitude with increasing size.

Accepted Answer

A) True 
 B)False

Solids usually have much greater densities than gases because molecules of a solid are much farther apart.

You can increase the vapor pressure of a liquid by:

Which atomic solid has the highest melting point?

Intermolecular forces are the attractive forces between atoms within a compound.

All intermolecular forces are broken when a liquid vaporizes into a gas.

Compare a small pot of water that is boiling vigorously to a large pot of water that is boiling gently.Which statement is TRUE?

Compounds with very high vapor pressures must have very minimal intermolecular forces.

How many kJ of heat are needed to completely vaporize 23.4 g of O? The heat of vaporization for water at the boiling point is

When you make ice cubes:

What are the principal forces holding ice together?

Which compound will have the highest boiling point?

Which state of matter has a low density and an indefinite volume?

Water has a heat of vaporization of 44.0 kJ/mol while the chemical diethyl ether has a heat of vaporization of 27.1 kJ/mol.This shows that one mole of water would vaporize more easily than would one mole of diethyl ether.

How many kJ of heat are needed to completely vaporize 3.30 moles of O? The heat of vaporization for water at the boiling point is

Substance A is a molecular compound that dissolves in gasoline but not in water.The molecules of A are very likely:

Intermolecular forces are responsible for:

The shapes of protein molecules are determined by intermolecular forces.

The amount of heat required to melt one mole of a solid is called the:

Which substance below is an ionic solid?

Dispersion forces result from the temporary distortion of the electron cloud in an atom or molecule which increases in magnitude with increasing size.

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Matter and Energy

Atoms and Elements

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Chemical Composition

Chemical Reactions

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Electrons in Atoms and the Periodic Table

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Exam 12: Liquids,solids,and Intermolecular Forces

Solids usually have much greater densities than gases because molecules of a solid are much farther apart.

You can increase the vapor pressure of a liquid by:

Which atomic solid has the highest melting point?

Intermolecular forces are the attractive forces between atoms within a compound.

All intermolecular forces are broken when a liquid vaporizes into a gas.

Compare a small pot of water that is boiling vigorously to a large pot of water that is boiling gently.Which statement is TRUE?

Compounds with very high vapor pressures must have very minimal intermolecular forces.

How many kJ of heat are needed to completely vaporize 23.4 g of O? The heat of vaporization for water at the boiling point is

When you make ice cubes:

What are the principal forces holding ice together?

Which compound will have the highest boiling point?

Which state of matter has a low density and an indefinite volume?

Water has a heat of vaporization of 44.0 kJ/mol while the chemical diethyl ether has a heat of vaporization of 27.1 kJ/mol.This shows that one mole of water would vaporize more easily than would one mole of diethyl ether.

How many kJ of heat are needed to completely vaporize 3.30 moles of O? The heat of vaporization for water at the boiling point is

Substance A is a molecular compound that dissolves in gasoline but not in water.The molecules of A are very likely:

Intermolecular forces are responsible for:

The shapes of protein molecules are determined by intermolecular forces.

The amount of heat required to melt one mole of a solid is called the:

Which substance below is an ionic solid?

Dispersion forces result from the temporary distortion of the electron cloud in an atom or molecule which increases in magnitude with increasing size.

The Chemical World

Measurement and Problem Solving

Matter and Energy

Atoms and Elements

Molecules and Compounds

Chemical Composition

Chemical Reactions

Quantities in Chemical Reactions

Electrons in Atoms and the Periodic Table

Chemical Bonding

Gases

Solutions

Acids and Bases

Chemical Equilibrium

Oxidation and Reduction

Radioactivity and Nuclear Chemistry

Organic Chemistry

Biochemistry

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