Tro IC3

1. Intramolecular2. Intermolecular3. Molecular4. Covalent5. Ionic

12.1 A force that occurs between molecules is called:

Tro IC3

1. Intramolecular2. Intermolecular3. Molecular4. Covalent5. Ionic

12.1 A force that occurs between molecules is called:

Tro IC3

1. Intramolecular2. Ionic3. Covalent4. All of the above5. Two of the above

12.2 A force that occurs between atoms within a compound might be:

Tro IC3

1. Intramolecular2. Ionic3. Covalent4. All of the above5. Two of the above

12.2 A force that occurs between atoms within a compound might be:

Tro IC3

1. Carbon dioxide2. Water3. Rubbing alcohol4. Table sugar5. Gasoline

12.3 Which pure compound has the highest total intermolecular forces per molecule at 25 °C?

Tro IC3

1. Carbon dioxide2. Water3. Rubbing alcohol4. Table sugar5. Gasoline

12.3 Which pure compound has the highest total intermolecular forces per molecule at 25 °C?

Tro IC3

1. The molecules are close together.2. The density is higher than its gas.3. It is not compressed easily.4. It assumes the shape of its container.5. All of the above

12.4 Which property describes a molecular liquid?

Tro IC3

1. The molecules are close together.2. The density is higher than its gas.3. It is not compressed easily.4. It assumes the shape of its container.5. All of the above

12.4 Which property describes a molecular liquid?

Tro IC3

1. The solid has a lower density than its gas.2. The solid has a lower average kinetic energy

than its gas at the same temperature.3. The solid is easy to compress.4. The solid does not assume the shape of its

container.5. All of the above

12.5 Which property best describes a molecular solid?

Tro IC3

1. The solid has a lower density than its gas.2. The solid has a lower average kinetic energy

than its gas at the same temperature.3. The solid is easy to compress.4. The solid does not assume the shape of its

container.5. All of the above

12.5 Which property best describes a molecular solid?

Tro IC3

1. It is less dense than water.2. It is more dense than water.3. The repulsive forces override the attractive forces.4. There are strong intermolecular forces between the

water and the metal.5. The molecules of water hold to each other and keep

it from sinking.

12.6 Why doesn’t a paper clip sink when the clip is placed gently on water?

Tro IC3

1. It is less dense than water.2. It is more dense than water.3. The repulsive forces override the attractive forces.4. There are strong intermolecular forces between the

water and the metal.5. The molecules of water hold to each other and keep

it from sinking.

12.6 Why doesn’t a paper clip sink when the clip is placed gently on water?

Tro IC3

1. Oxygen gas2. Pancake syrup3. Running water4. Liquid helium5. Rubbing alcohol

12.7 Which of the following has the highest viscosity?

Tro IC3

1. Oxygen gas2. Pancake syrup3. Running water4. Liquid helium5. Rubbing alcohol

12.7 Which of the following has the highest viscosity?

Tro IC3

1. Condensation2. Evaporation3. Sublimation4. Vaporization5. Two of the above

12.8 The transformation from a liquid to a gas is called:

Tro IC3

1. Condensation2. Evaporation3. Sublimation4. Vaporization5. Two of the above

12.8 The transformation from a liquid to a gas is called:

Tro IC3

1. It remains unchanged. 2. It decreases.3. It increases.4. None of the above5. All of the above

12.9 What happens to the kinetic energy of gaseous water molecules during condensation?

Tro IC3

1. It remains unchanged. 2. It decreases.3. It increases.4. None of the above5. All of the above

12.9 What happens to the kinetic energy of gaseous water molecules during condensation?

Tro IC3

1. Gold 2. Vegetable oil3. Water4. Motor oil5. Fingernail polish remover

12.10 Which of the following is the most volatile?

Tro IC3

1. Gold 2. Vegetable oil3. Water4. Motor oil5. Fingernail polish remover

12.10 Which of the following is the most volatile?

Tro IC3

1. The boiling point increases with increased pressure.2. The boiling point increases with decreased pressure.3. The boiling point decreases with increased pressure.4. The boiling point decreases with decreased pressure.5. Two of the above

12.11 What is the relationship between the external pressure and the boiling point of a compound?

Tro IC3

1. The boiling point increases with increased pressure.2. The boiling point increases with decreased pressure.3. The boiling point decreases with increased pressure.4. The boiling point decreases with decreased pressure.5. Two of the above

12.11 What is the relationship between the external pressure and the boiling point of a compound?

Tro IC3

1. Oxygen2. Water vapor3. Nothing4. Hydrogen5. Nitrogen

12.12 What is the gas found within a bubble of boiling water?

Tro IC3

1. Oxygen2. Water vapor3. Nothing4. Hydrogen5. Nitrogen

12.12 What is the gas found within a bubble of boiling water?

Tro IC3

1. Boiling2. Freezing3. Condensation4. Both 1 and 25. Both 2 and 3

12.13 Which of the following processes are exothermic?

Tro IC3

1. Boiling2. Freezing3. Condensation4. Both 1 and 25. Both 2 and 3

12.13 Which of the following processes are exothermic?

Tro IC3

1. 5 grams of water at 100 °C2. 5 grams of water at 75 °C3. 5 grams of steam at 100 °C4. 5 grams of water at 0 °C5. 5 grams of ice at 0 °C

12.14 Which of the following contains the most thermal energy?

Tro IC3

1. 5 grams of water at 100 °C2. 5 grams of water at 75 °C3. 5 grams of steam at 100 °C4. 5 grams of water at 0 °C5. 5 grams of ice at 0 °C

12.14 Which of the following contains the most thermal energy?

Tro IC3

1. 1.85 x 103 kJ2. 1.12 kJ3. 103 kJ4. 2.52 kJ5. 40.6 kJ

12.15 What is the quantity of energy required to boil 45.5 g of liquid water at 100 °C at sea level? The molar heat of vaporization of water is 40.6 kJ/mol.

Tro IC3

1. 1.85 x 103 kJ2. 1.12 kJ3. 103 kJ4. 2.52 kJ5. 40.6 kJ

12.15 What is the quantity of energy required to boil 45.5 g of liquid water at 100 °C at sea level? The molar heat of vaporization of water is 40.6 kJ/mol.

Tro IC3

1. 27.1 kJ2. 6.02 kJ3. 1.34 kJ4. 1.50 kJ5. 30.5 kJ

12.16 What is the energy required to melt 4.50 mol of ice at 0 °C? The molar heat of fusion of water is 6.02 kJ/mol.

Tro IC3

1. 27.1 kJ2. 6.02 kJ3. 1.34 kJ4. 1.50 kJ5. 30.5 kJ

12.16 What is the energy required to melt 4.50 mol of ice at 0 °C? The molar heat of fusion of water is 6.02 kJ/mol.

Tro IC3

1. The rate of freezing is faster.2. The rate of melting is faster.3. The ice will always melt.4. The water will always freeze.5. The rates of freezing and melting are equal.

12.17 Which statement is most likely true concerning an ice/water mixture kept at 0 °C?

Tro IC3

1. The rate of freezing is faster.2. The rate of melting is faster.3. The ice will always melt.4. The water will always freeze.5. The rates of freezing and melting are equal.

12.17 Which statement is most likely true concerning an ice/water mixture kept at 0° C?

Tro IC3

1. Covalent2. Dipole–dipole3. Hydrogen bonding4. Ionic5. Dispersion

12.18 Which type of intermolecular force is the strongest?

Tro IC3

1. Covalent2. Dipole–dipole3. Hydrogen bonding4. Ionic5. Dispersion

12.18 Which type of intermolecular force is the strongest?

Tro IC3

1. Ionic2. Dipole–dipole3. Hydrogen bonding4. Dispersion5. Covalent

12.19 Which intermolecular force allows water to bead on a surface?

Tro IC3

1. Ionic2. Dipole–dipole3. Hydrogen bonding4. Dispersion5. Covalent

12.19 Which intermolecular force allows water to bead on a surface?

Tro IC3

1. CH3CH2CH3

2. CH3CH2NH2

3. CH3OCH3

4. CH4

5. CH3CH2OH

12.20 Which of the following has the highest boiling point?

Tro IC3

1. CH3CH2CH3

2. CH3CH2NH2

3. CH3OCH3

4. CH4

5. CH3CH2OH

12.20 Which of the following has the highest boiling point?

Tro IC3

1. CH3CH2CH3

2. CH3CH2NH2

3. CH3OCH3

4. H2O

5. CH3CH2OH

12.21 Which of the following has the least solubility in water?

Tro IC3

1. CH3CH2CH3

2. CH3CH2NH2

3. CH3OCH3

4. H2O

5. CH3CH2OH

12.21 Which of the following has the least solubility in water?

Tro IC3

1. Dipole–dipole2. Hydrogen bonding3. Dispersion4. Ionic5. Covalent

12.22 What type of intermolecular force causes today’s Saran Wrap to stick to itself?

Tro IC3

1. Dipole–dipole2. Hydrogen bonding3. Dispersion4. Ionic5. Covalent

12.22 What type of intermolecular force causes today’s Saran Wrap to stick to itself?

Tro IC3

1. NaCl, Si, CO2, H2O

2. Si, NaCl, H2O, CO2

3. H2O, CO2, NaCl, Si

4. CO2, H2O, NaCl, Si

5. CO2, H2O, Si, NaCl

12.23 Arrange the following in order of increasing melting point (lowest first): CO2, Si, H2O, and NaCl.

Tro IC3

1. NaCl, Si, CO2, H2O

2. Si, NaCl, H2O, CO2

3. H2O, CO2, NaCl, Si

4. CO2, H2O, NaCl, Si

5. CO2, H2O, Si, NaCl

12.23 Arrange the following in order of increasing melting point (lowest first): CO2, Si, H2O, and NaCl.

Tro IC3

1. Molecular2. Ionic3. Atomic4. Amorphous5. None of the above

12.24 What type of crystalline solid is formed by potassium iodide?

Tro IC3

1. Molecular2. Ionic3. Atomic4. Amorphous5. None of the above

12.24 What type of crystalline solid is formed by potassium iodide?

Tro IC3

1. C6H12O6

2. HCl3. S8

4. NaCl5. None of the above

12.25 Which of the following is an example of an atomic solid?

Tro IC3

1. C6H12O6

2. HCl3. S8

4. NaCl5. None of the above

12.25 Which of the following is an example of an atomic solid?