Question 1

Ionic solids tend to have higher melting points than molecular solids.

Accepted Answer

A) True 
 B)False  True

Question 2

When sufficient quantity of heat has been added to reach the boiling point of a solution,what happens to any additional heat added?

Accepted Answer

A) Additional heat is used to evaporate the liquid as the process is endothermic and requires continued input of energy. 
B) Additional heat raises the temperature of the liquid which in turn increases the rate at which boiling occurs. 
C) Additional heat lowers the intermolecular forces of the liquid which in turn increases the volatility of the liquid. 
D) Additional heat alters the viscosity and the surface tension of the liquid which raises the vapor pressure and increases the boiling point which is why you must continually heat the solution. 
E) None of the above are correct statements. 
A) Additional heat is used to evaporate the liquid as the process is endothermic and requires continued input of energy. 
B) Additional heat raises the temperature of the liquid which in turn increases the rate at which boiling occurs. 
C) Additional heat lowers the intermolecular forces of the liquid which in turn increases the volatility of the liquid. 
D) Additional heat alters the viscosity and the surface tension of the liquid which raises the vapor pressure and increases the boiling point which is why you must continually heat the solution. 
E) None of the above are correct statements. A

Question 3

Which intermolecular forces are found in CO2?

Accepted Answer

A) dispersion forces 
B) dipole-dipole forces 
C) hydrogen bonding 
D) dispersion forces and dipole-dipole forces 
E) none of the above 
A) dispersion forces 
B) dipole-dipole forces 
C) hydrogen bonding 
D) dispersion forces and dipole-dipole forces 
E) none of the above A

Question 4

The shapes of protein molecules are determined by intermolecular forces.

Accepted Answer

A) True 
 B)False

Question 5

Ice can float in a glass of liquid water because the solid form of water is more dense than the liquid form.

Accepted Answer

A) True 
 B)False

Question 6

The opposite process of freezing is:

Accepted Answer

A) evaporation. 
B) sublimation. 
C) boiling. 
D) condensation. 
E) none of the above 
A) evaporation. 
B) sublimation. 
C) boiling. 
D) condensation. 
E) none of the above

Question 7

Ice is an example of a molecular solid.

Accepted Answer

A) True 
 B)False

Question 8

Which intermolecular force is common to all polar molecules but NOT nonpolar molecules?

Accepted Answer

A) dispersion forces 
B) dipole-dipole forces 
C) hydrogen bonding 
D) X-forces 
E) none of the above 
A) dispersion forces 
B) dipole-dipole forces 
C) hydrogen bonding 
D) X-forces 
E) none of the above

Question 9

Which compound will have the highest boiling point?

Accepted Answer

A) CH4 
B) CH3CH3 
C) CH3C(O)CH3 
D)  CH3CH2OH 
E) not enough information 
A) CH4 
B) CH3CH3 
C) CH3C(O)CH3 
D)  CH3CH2OH 
E) not enough information

Question 10

Without intermolecular forces,solids and liquids would not exist and all matter would be gaseous.

Accepted Answer

A) True 
 B)False

Question 11

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 12

Hydrogen bonding occurs whenever hydrogen is present.

Accepted Answer

A) True 
 B)False

Question 13

Which molecule below has hydrogen bonding?

Accepted Answer

A) CH4 
B) HCl 
C)  H2 
D)  CH3CH2OH 
E) all of the above 
A) CH4 
B) HCl 
C)  H2 
D)  CH3CH2OH 
E) all of the above

Question 14

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 15

Heat is released when a liquid freezes into a solid.

Accepted Answer

A) True 
 B)False

Question 16

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 17

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 18

The change of a substance from a liquid to a gaseous form is called:

Accepted Answer

A) dynamic equilibrium. 
B) heat of fusion. 
C) condensation. 
D) vaporization. 
E) volatile. 
A) dynamic equilibrium. 
B) heat of fusion. 
C) condensation. 
D) vaporization. 
E) volatile.

Question 19

Attraction between the Na+ cation and Cl- anion holds the solid lattice of sodium chloride together.

Accepted Answer

A) True 
 B)False

Question 20

Consider the three compounds below,then choose the compound(s)that have hydrogen bonding. 
1.H2
2.CH4
3.HF

Accepted Answer

A) Only compound 1 has hydrogen bonding. 
B) Only compound 2 has hydrogen bonding. 
C) Only compound 3 has hydrogen bonding. 
D) All three of these compounds have hydrogen bonding. 
E) None of these compounds have hydrogen bonding. 
A) Only compound 1 has hydrogen bonding. 
B) Only compound 2 has hydrogen bonding. 
C) Only compound 3 has hydrogen bonding. 
D) All three of these compounds have hydrogen bonding. 
E) None of these compounds have hydrogen bonding.

Ionic solids tend to have higher melting points than molecular solids.

When sufficient quantity of heat has been added to reach the boiling point of a solution,what happens to any additional heat added?

Which intermolecular forces are found in CO₂?

The shapes of protein molecules are determined by intermolecular forces.

Ice can float in a glass of liquid water because the solid form of water is more dense than the liquid form.

The opposite process of freezing is:

Ice is an example of a molecular solid.

Which intermolecular force is common to all polar molecules but NOT nonpolar molecules?

Which compound will have the highest boiling point?

Without intermolecular forces,solids and liquids would not exist and all matter would be gaseous.

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

Hydrogen bonding occurs whenever hydrogen is present.

Which molecule below has hydrogen bonding?

Which substance below is an ionic solid?

Heat is released when a liquid freezes into a solid.

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

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

The change of a substance from a liquid to a gaseous form is called:

Attraction between the Na⁺ cation and Cl^- anion holds the solid lattice of sodium chloride together.

Consider the three compounds below,then choose the compound(s)that have hydrogen bonding. 1.H₂ 2.CH₄ 3.HF

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

Filters

Exam 12: Liquids, solids, and Intermolecular Forces

Ionic solids tend to have higher melting points than molecular solids.

When sufficient quantity of heat has been added to reach the boiling point of a solution,what happens to any additional heat added?

Which intermolecular forces are found in CO2?

The shapes of protein molecules are determined by intermolecular forces.

Ice can float in a glass of liquid water because the solid form of water is more dense than the liquid form.

The opposite process of freezing is:

Ice is an example of a molecular solid.

Which intermolecular force is common to all polar molecules but NOT nonpolar molecules?

Which compound will have the highest boiling point?

Without intermolecular forces,solids and liquids would not exist and all matter would be gaseous.

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

Hydrogen bonding occurs whenever hydrogen is present.

Which molecule below has hydrogen bonding?

Which substance below is an ionic solid?

Heat is released when a liquid freezes into a solid.

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

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

The change of a substance from a liquid to a gaseous form is called:

Attraction between the Na+ cation and Cl- anion holds the solid lattice of sodium chloride together.

Consider the three compounds below,then choose the compound(s)that have hydrogen bonding. 1.H2 2.CH4 3.HF

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

Filters

Which intermolecular forces are found in CO₂?

Attraction between the Na⁺ cation and Cl^- anion holds the solid lattice of sodium chloride together.

Consider the three compounds below,then choose the compound(s)that have hydrogen bonding. 1.H₂ 2.CH₄ 3.HF