Question 1

Which of the following properties of liquids is the least affected by the strength of intermolecular forces?

Accepted Answer

A) vapor pressure 
B) boiling point 
C) heat of vaporization 
D) density 
E) viscosity 
A) vapor pressure 
B) boiling point 
C) heat of vaporization 
D) density 
E) viscosity

Question 2

Why does ice float on liquid water?

Accepted Answer

A) It is a compound without carbon atoms that exists in the liquid state at room temperature and pressure. 
B) The linear structure of the water molecule allows ice molecules to pack together tightly enough to allow ice to float. 
C) Ice is structurally similar to wood, so ice floats on water in a manner similar to wooden ships where air becomes trapped in cells within the solid structure. 
D) Oxygen's low electronegativity leads to the collapse of the crystal structure, allowing the molecules to become closer together in water. 
E) Water molecules in the solid form are held in a crystal pattern that has voids between the molecules. 
A) It is a compound without carbon atoms that exists in the liquid state at room temperature and pressure. 
B) The linear structure of the water molecule allows ice molecules to pack together tightly enough to allow ice to float. 
C) Ice is structurally similar to wood, so ice floats on water in a manner similar to wooden ships where air becomes trapped in cells within the solid structure. 
D) Oxygen's low electronegativity leads to the collapse of the crystal structure, allowing the molecules to become closer together in water. 
E) Water molecules in the solid form are held in a crystal pattern that has voids between the molecules.

Question 3

Examine the structure shown below.   Which of the following is the most important intermolecular forces experienced between this molecule and an identical molecule?

Accepted Answer

A) hydrogen bonds 
B) dipole forces 
C) induced dipole forces 
D) a and c are about the same in this case. 
E) b and c are about the same in this case. 
A) hydrogen bonds 
B) dipole forces 
C) induced dipole forces 
D) a and c are about the same in this case. 
E) b and c are about the same in this case.

Question 4

A substance that melts at 122°C is probably:

Accepted Answer

A) A network solid 
B) An ionic crystal 
C) A metallic crystal 
D) A molecular crystal 
E) A good electrical conductor 
A) A network solid 
B) An ionic crystal 
C) A metallic crystal 
D) A molecular crystal 
E) A good electrical conductor

Question 5

Draw the Lewis diagrams of CH3OH and water,then from the Lewis diagrams,identify the statement among the following that is most apt to be incorrect.

Accepted Answer

A) Hydrogen bonds are probably the principal intermolecular force in both compounds 
B) Both compounds have both hydrogen bonding and induced dipole forces 
C) Both molecules being polar, dipole-dipole forces are present in both compounds 
D) Induced dipole forces are present in CH3OH, but not water 
E) Induced dipole forces are probably the least significant intermolecular forces in both compounds 
A) Hydrogen bonds are probably the principal intermolecular force in both compounds 
B) Both compounds have both hydrogen bonding and induced dipole forces 
C) Both molecules being polar, dipole-dipole forces are present in both compounds 
D) Induced dipole forces are present in CH3OH, but not water 
E) Induced dipole forces are probably the least significant intermolecular forces in both compounds

Which of the following properties of liquids is the least affected by the strength of intermolecular forces?

Why does ice float on liquid water?

Examine the structure shown below. Which of the following is the most important intermolecular forces experienced between this molecule and an identical molecule?

A substance that melts at 122°C is probably:

Draw the Lewis diagrams of CH₃OH and water,then from the Lewis diagrams,identify the statement among the following that is most apt to be incorrect.

Matter and Energy

Measurement and Chemical Calculations

Introduction to Gases

Atomic Theory: The Nuclear Model of the Atom

Chemical Nomenclature

Chemical Formula Relationships

Chemical Reactions

Chemical Change

Quantity Relationships in Chemical Reactions

Atomic Theory: The Quantum Model of the Atom

Chemical Bonding

Structure and Shape

The Ideal Gas Law and Its Applications

Solutions

Acidbase Proton Transferreactions

Chemical Equilibrium

Oxidationreduction Electron Transferreactions

Nuclear Chemistry

Organic Chemistry

Biochemistry

Filters

Exam 15: Gases, Liquids, and Solids

Which of the following properties of liquids is the least affected by the strength of intermolecular forces?

Why does ice float on liquid water?

Examine the structure shown below. Which of the following is the most important intermolecular forces experienced between this molecule and an identical molecule?

A substance that melts at 122°C is probably:

Draw the Lewis diagrams of CH3OH and water,then from the Lewis diagrams,identify the statement among the following that is most apt to be incorrect.

Matter and Energy

Measurement and Chemical Calculations

Introduction to Gases

Atomic Theory: The Nuclear Model of the Atom

Chemical Nomenclature

Chemical Formula Relationships

Chemical Reactions

Chemical Change

Quantity Relationships in Chemical Reactions

Atomic Theory: The Quantum Model of the Atom

Chemical Bonding

Structure and Shape

The Ideal Gas Law and Its Applications

Solutions

Acidbase Proton Transferreactions

Chemical Equilibrium

Oxidationreduction Electron Transferreactions

Nuclear Chemistry

Organic Chemistry

Biochemistry

Filters

Draw the Lewis diagrams of CH₃OH and water,then from the Lewis diagrams,identify the statement among the following that is most apt to be incorrect.