Question 1

The melting and freezing points are identical for the same compound.

Accepted Answer

A) True 
 B)False  True

Question 2

The strength of a hydrogen bond is about ________% the strength of a normal O-H bond

Accepted Answer

A) 1 
B) 4 
C) 16 
D) 50 
A) 1 
B) 4 
C) 16 
D) 50 B

Question 3

The force(s)responsible for holding the DNA molecule in a very long twisted zipper is ________.

Accepted Answer

A) hydrogen bonding 
B) London forces 
C) dipolar forces 
D) interionic forces 
A) hydrogen bonding 
B) London forces 
C) dipolar forces 
D) interionic forces A

Question 4

Identify the following crystalline solids as ionic, molecular, or metallic.
-chromium, Cr

Accepted Answer

The answer of Identify the following crystalline solids as ionic,...

Question 5

Based upon the formulas and melting points, decide whether each of the following crystalline substances should be classified as ionic, molecular, metallic or network covalent.
-sodium fluoride, NaF, m.p.: 993 °C

Accepted Answer

The answer of Based upon the formulas and melting points,...

Question 6

Which of the following chemical substances would you expect to have the lowest boiling point (you may consider molecular mass and the degree of intermolecular forces as primary controlling factors)?

Accepted Answer

A) CH4 
B) CH3CH3 
C) CH3CH2CH3 
D) CH3CH2CH2CH3 
A) CH4 
B) CH3CH3 
C) CH3CH2CH3 
D) CH3CH2CH2CH3

Question 7

Based upon the formulas and melting points, decide whether each of the following crystalline substances should be classified as ionic, molecular, metallic or network covalent.
-magnesium chloride, MgC12, m.p.: 714 °C

Accepted Answer

Question 8

Which of the following is not a solid at 0 °C?

Accepted Answer

A) salt 
B) carbon dioxide 
C) sugar 
D) iron 
A) salt 
B) carbon dioxide 
C) sugar 
D) iron

Question 9

Which of these has the highest melting point?

Accepted Answer

A) diamond 
B) iron 
C) sodium 
D) bromine 
A) diamond 
B) iron 
C) sodium 
D) bromine

Question 10

Identify the following crystalline solids as ionic, molecular, or metallic.
-iodine, I2

Accepted Answer

Question 11

The replacement of a single NH group on vancomycin causes the antibiotic to become ineffective.

Accepted Answer

A) True 
 B)False

Question 12

Vancomycin is the first line of defense against bacteria.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following will have the highest boiling point?

Accepted Answer

A) HI 
B) HBr 
C) HCl 
D) HF 
A) HI 
B) HBr 
C) HCl 
D) HF

Question 14

Identify the following crystalline solids as ionic, molecular, or metallic.
-glucose, C6H12O6

Accepted Answer

Question 15

Which of the following experiences the strongest London forces?

Accepted Answer

A) carbon tetrachloride 
B) water 
C) hydrogen 
D) helium 
A) carbon tetrachloride 
B) water 
C) hydrogen 
D) helium

Question 16

Which of the following chemical substances would you expect to exhibit a degree of hydrogen bonding?

Accepted Answer

A) NH3 
B) CH3OH 
C) HF 
D) all of the above 
A) NH3 
B) CH3OH 
C) HF 
D) all of the above

Question 17

Which of the following may not be considered an ionic compound?

Accepted Answer

A) sodium chloride 
B) magnesium oxide 
C) ammonia 
D) potassium bromide 
A) sodium chloride 
B) magnesium oxide 
C) ammonia 
D) potassium bromide

Question 18

Polar molecules may exhibit ________.

Accepted Answer

A) London forces 
B) hydrogen bonding 
C) dipolar forces 
D) all of the above 
A) London forces 
B) hydrogen bonding 
C) dipolar forces 
D) all of the above

Question 19

London forces become significant for large molecules with many atoms and many electrons.

Accepted Answer

A) True 
 B)False

Question 20

Which of the following influences the strength of the intermolecular forces?

Accepted Answer

A) distance between interacting molecules 
B) relative orientation between interacting molecules 
C) location of the molecule in a liquid or solid 
D) All of the above influence the strength of the intermolecular forces. 
A) distance between interacting molecules 
B) relative orientation between interacting molecules 
C) location of the molecule in a liquid or solid 
D) All of the above influence the strength of the intermolecular forces.

The melting and freezing points are identical for the same compound.

The strength of a hydrogen bond is about ________% the strength of a normal O-H bond

The force(s)responsible for holding the DNA molecule in a very long twisted zipper is ________.

Identify the following crystalline solids as ionic, molecular, or metallic. -chromium, Cr

Based upon the formulas and melting points, decide whether each of the following crystalline substances should be classified as ionic, molecular, metallic or network covalent. -sodium fluoride, NaF, m.p.: 993 °C

Which of the following chemical substances would you expect to have the lowest boiling point (you may consider molecular mass and the degree of intermolecular forces as primary controlling factors)?

Based upon the formulas and melting points, decide whether each of the following crystalline substances should be classified as ionic, molecular, metallic or network covalent. -magnesium chloride, MgC1₂, m.p.: 714 °C

Which of the following is not a solid at 0 °C?

Which of these has the highest melting point?

Identify the following crystalline solids as ionic, molecular, or metallic. -iodine, I₂

The replacement of a single NH group on vancomycin causes the antibiotic to become ineffective.

Vancomycin is the first line of defense against bacteria.

Which of the following will have the highest boiling point?

Identify the following crystalline solids as ionic, molecular, or metallic. -glucose, C₆H₁₂O₆

Which of the following experiences the strongest London forces?

Which of the following chemical substances would you expect to exhibit a degree of hydrogen bonding?

Which of the following may not be considered an ionic compound?

Polar molecules may exhibit ________.

London forces become significant for large molecules with many atoms and many electrons.

Which of the following influences the strength of the intermolecular forces?

What Is Chemistry

The Numerical Side of Chemistry

The Evolution of Atomic Theory

The Modern Model of the Atom

Chemical Bonding and Nomenclature

The Shape of Molecules

Chemical Reactions

Stoichiometry and the Mole

Electron Transfer in Chemical Reactions

What If There Were No Intermolecular Forces the Ideal Gas

Solutions

When Reactants Turn Into Products

Chemical Equilibrium

Electrolytes, Acids, and Bases

Nuclear Chemistry

The Chemistry of Carbon

Synthetic and Biological Polymers

Filters

Exam 7: Intermolecular Forces and the Phases of Matter

The melting and freezing points are identical for the same compound.

The strength of a hydrogen bond is about ________% the strength of a normal O-H bond

The force(s)responsible for holding the DNA molecule in a very long twisted zipper is ________.

Identify the following crystalline solids as ionic, molecular, or metallic. -chromium, Cr

Based upon the formulas and melting points, decide whether each of the following crystalline substances should be classified as ionic, molecular, metallic or network covalent. -sodium fluoride, NaF, m.p.: 993 °C

Which of the following chemical substances would you expect to have the lowest boiling point (you may consider molecular mass and the degree of intermolecular forces as primary controlling factors)?

Based upon the formulas and melting points, decide whether each of the following crystalline substances should be classified as ionic, molecular, metallic or network covalent. -magnesium chloride, MgC12, m.p.: 714 °C

Which of the following is not a solid at 0 °C?

Which of these has the highest melting point?

Identify the following crystalline solids as ionic, molecular, or metallic. -iodine, I2

The replacement of a single NH group on vancomycin causes the antibiotic to become ineffective.

Vancomycin is the first line of defense against bacteria.

Which of the following will have the highest boiling point?

Identify the following crystalline solids as ionic, molecular, or metallic. -glucose, C6H12O6

Which of the following experiences the strongest London forces?

Which of the following chemical substances would you expect to exhibit a degree of hydrogen bonding?

Which of the following may not be considered an ionic compound?

Polar molecules may exhibit ________.

London forces become significant for large molecules with many atoms and many electrons.

Which of the following influences the strength of the intermolecular forces?

What Is Chemistry

The Numerical Side of Chemistry

The Evolution of Atomic Theory

The Modern Model of the Atom

Chemical Bonding and Nomenclature

The Shape of Molecules

Chemical Reactions

Stoichiometry and the Mole

Electron Transfer in Chemical Reactions

What If There Were No Intermolecular Forces the Ideal Gas

Solutions

When Reactants Turn Into Products

Chemical Equilibrium

Electrolytes, Acids, and Bases

Nuclear Chemistry

The Chemistry of Carbon

Synthetic and Biological Polymers

Filters

Based upon the formulas and melting points, decide whether each of the following crystalline substances should be classified as ionic, molecular, metallic or network covalent. -magnesium chloride, MgC1₂, m.p.: 714 °C

Identify the following crystalline solids as ionic, molecular, or metallic. -iodine, I₂

Identify the following crystalline solids as ionic, molecular, or metallic. -glucose, C₆H₁₂O₆