Question 1

The two compounds below have the same molecular formula. One would expect A to stronger dispersion forces than B.

Accepted Answer

A) True 
 B)False  False

Question 2

Which of the following is the smallest unit of thermal energy?

Accepted Answer

A)  calorie 
B)  Calorie 
C)  joule 
D)  kilojoule 
A)  calorie 
B)  Calorie 
C)  joule 
D)  kilojoule C

Question 3

Helium (He) is used to fill balloons and is stored in a metal cylinder with pressure gauges on the top.   For each of the following changes, fill the blank with one of the following terms to describe what happens to the pressure reading on the gauge. 
increases
decreases
remains constant
-The 175 g of He was added to the cylinder. The pressure reading ______________________.

Accepted Answer

increases
Increases

Question 4

The addition of methanol (CH3OH) to water can be illustrated as shown below.   Based on this image, methanol would be classified as

Accepted Answer

A)  an electrolyte. 
B)  a strong electrolyte. 
C)  a weak electrolyte. 
D)  a nonelectrolyte 
E)  both an electrolyte and a weak electrolyte.
F) both an electrolyte and a strong electrolyte. 
A)  an electrolyte. 
B)  a strong electrolyte. 
C)  a weak electrolyte. 
D)  a nonelectrolyte 
E)  both an electrolyte and a weak electrolyte.
F) both an electrolyte and a strong electrolyte.

Question 5

The heat of vaporization of water is 540 cal/g. What mass of water at 100.0 °C can be vaporized by the addition of 55.0 kcal of heat?

Accepted Answer

A)  0.19 g 
B)  55 g 
C)    g 
D)  102 g 
A)  0.19 g 
B)  55 g 
C)    g 
D)  102 g

Question 6

Air pressure can be expressed in which of the following units?

Accepted Answer

A)  atmosphere 
B)  pascal 
C)  torr 
D)  any of these 
A)  atmosphere 
B)  pascal 
C)  torr 
D)  any of these

Question 7

To convert from joules to kilojoules, move the decimal in the number three places to the right.

Accepted Answer

A) True 
 B)False

Question 8

Consider the following three substances.       A B C
Enter the letter of the appropriate substance in the blank provided. If none applies, enter the word none.
-Substance____can function as a hydrogen bond acceptor but not a hydrogen bond donor.

Accepted Answer

The answer of Consider the following three substances.  ...

Question 9

A gas cylinder contains three gases: oxygen, nitrogen, and helium. The partial pressure of oxygen is 4.7 psi and the partial pressure of nitrogen is 3.0 psi. If the reading on the pressure gauge is as shown below.   What is the partial pressure of the He?

Accepted Answer

The answer of A gas cylinder contains three gases: oxygen,...

Question 10

Which of the following molecules is most likely to be a gas at room temperature?

Accepted Answer

A)  PH3 
B)  PCl3 
C)  PBr3 
D)  PI3 
A)  PH3 
B)  PCl3 
C)  PBr3 
D)  PI3

Question 11

One would expect a compound with the molecular formula C4H10 to have a lower boiling point than one with the formula C7H16.

Accepted Answer

A) True 
 B)False

Question 12

Glycerol changes its shape to conform to its container and has a fairly high density. Glycerol is a:

Accepted Answer

A)  solid. 
B)  liquid. 
C)  gaseous. 
D)  either B or C 
A)  solid. 
B)  liquid. 
C)  gaseous. 
D)  either B or C

Question 13

Oxygen, nitrogen and helium are present in a container in which the total pressure is 735 torr. If the pressure of oxygen is 135 torr, that of helium is 55 torr, the pressure of nitrogen is 545 torr.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following correctly arranges the physical states of matter (gas - g, solid - s, liquid - l) in order of increasing energy of the particles (lowest to highest)?

Accepted Answer

A)  g < l < s 
B)  g < s < l 
C)  l < g < s 
D)  s < l < g 
A)  g < l < s 
B)  g < s < l 
C)  l < g < s 
D)  s < l < g

Question 15

In order to convert a pressure in atmospheres to torr, the following conversion factor should be used.

Accepted Answer

A) True 
 B)False

Question 16

In which of the following processes does the energy of the water increase?

Accepted Answer

A)  water freezes 
B)  steam condenses to the liquid 
C)  water evaporates 
D)  water sublimes 
E)  both c and d 
A)  water freezes 
B)  steam condenses to the liquid 
C)  water evaporates 
D)  water sublimes 
E)  both c and d

Question 17

The law of conservation of energy states which of the following?

Accepted Answer

A)  Energy cannot be converted from one form to another. 
B)  Kinetic energy is conserved. 
C)  Potential energy is conserved. 
D)  none of the above 
A)  Energy cannot be converted from one form to another. 
B)  Kinetic energy is conserved. 
C)  Potential energy is conserved. 
D)  none of the above

Question 18

When you inhale and exhale does your rib cage raise or lower? Why?

Accepted Answer

Upon inhalation, the rib cage raises to

Question 19

Consider a bowling ball with the same diameter and volume as a soccer ball. Both are sitting still on the top of table. Both have the same potential energy.

Accepted Answer

A) True 
 B)False

Question 20

In the following sentences, fill in the blanks with the appropriate terms from the list below.   
high
low
electrolyte
nonelectrolyte
ion-ion attraction
dipole-dipole attraction
hydrogen bond
dispersion force
-The dashed line in the figure represents a__________________.

Accepted Answer

hydrogen b

The two compounds below have the same molecular formula. One would expect A to stronger dispersion forces than B.

Which of the following is the smallest unit of thermal energy?

The addition of methanol (CH₃OH) to water can be illustrated as shown below. Based on this image, methanol would be classified as

The heat of vaporization of water is 540 cal/g. What mass of water at 100.0 °C can be vaporized by the addition of 55.0 kcal of heat?

Air pressure can be expressed in which of the following units?

To convert from joules to kilojoules, move the decimal in the number three places to the right.

Consider the following three substances. A B C Enter the letter of the appropriate substance in the blank provided. If none applies, enter the word none. -Substance____can function as a hydrogen bond acceptor but not a hydrogen bond donor.

A gas cylinder contains three gases: oxygen, nitrogen, and helium. The partial pressure of oxygen is 4.7 psi and the partial pressure of nitrogen is 3.0 psi. If the reading on the pressure gauge is as shown below. What is the partial pressure of the He?

Which of the following molecules is most likely to be a gas at room temperature?

One would expect a compound with the molecular formula C₄H₁₀ to have a lower boiling point than one with the formula C₇H₁₆.

Glycerol changes its shape to conform to its container and has a fairly high density. Glycerol is a:

Oxygen, nitrogen and helium are present in a container in which the total pressure is 735 torr. If the pressure of oxygen is 135 torr, that of helium is 55 torr, the pressure of nitrogen is 545 torr.

Which of the following correctly arranges the physical states of matter (gas - g, solid - s, liquid - l) in order of increasing energy of the particles (lowest to highest)?

In order to convert a pressure in atmospheres to torr, the following conversion factor should be used.

In which of the following processes does the energy of the water increase?

The law of conservation of energy states which of the following?

When you inhale and exhale does your rib cage raise or lower? Why?

Consider a bowling ball with the same diameter and volume as a soccer ball. Both are sitting still on the top of table. Both have the same potential energy.

In the following sentences, fill in the blanks with the appropriate terms from the list below. high low electrolyte nonelectrolyte ion-ion attraction dipole-dipole attraction hydrogen bond dispersion force -The dashed line in the figure represents a__________________.

Measurements in Science and Medicine

Atoms, Elements, and Compounds

Chemical Bonds

Solution Concentration

Chemical Reactions

Acids and Bases

Nuclear Chemistry

Hydrocarbons: an Introduction to Organic Molecules

Hydration, Dehydration, and Alcohols

Carbonyl Compounds and Redox Reactions

Organic Acids and Bases

Condensation and Hydrolysis Reactions

Proteins

Carbohydrates

Lipids and Membranes

Nucleic Acids, Protein Synthesis, and Heredity

Filters

Exam 4: Energy and Physical Properties

The two compounds below have the same molecular formula. One would expect A to stronger dispersion forces than B.

Which of the following is the smallest unit of thermal energy?

The addition of methanol (CH3OH) to water can be illustrated as shown below. Based on this image, methanol would be classified as

The heat of vaporization of water is 540 cal/g. What mass of water at 100.0 °C can be vaporized by the addition of 55.0 kcal of heat?

Air pressure can be expressed in which of the following units?

To convert from joules to kilojoules, move the decimal in the number three places to the right.

Consider the following three substances. A B C Enter the letter of the appropriate substance in the blank provided. If none applies, enter the word none. -Substance____can function as a hydrogen bond acceptor but not a hydrogen bond donor.

A gas cylinder contains three gases: oxygen, nitrogen, and helium. The partial pressure of oxygen is 4.7 psi and the partial pressure of nitrogen is 3.0 psi. If the reading on the pressure gauge is as shown below. What is the partial pressure of the He?

Which of the following molecules is most likely to be a gas at room temperature?

One would expect a compound with the molecular formula C4H10 to have a lower boiling point than one with the formula C7H16.

Glycerol changes its shape to conform to its container and has a fairly high density. Glycerol is a:

Oxygen, nitrogen and helium are present in a container in which the total pressure is 735 torr. If the pressure of oxygen is 135 torr, that of helium is 55 torr, the pressure of nitrogen is 545 torr.

Which of the following correctly arranges the physical states of matter (gas - g, solid - s, liquid - l) in order of increasing energy of the particles (lowest to highest)?

In order to convert a pressure in atmospheres to torr, the following conversion factor should be used.

In which of the following processes does the energy of the water increase?

The law of conservation of energy states which of the following?

When you inhale and exhale does your rib cage raise or lower? Why?

Consider a bowling ball with the same diameter and volume as a soccer ball. Both are sitting still on the top of table. Both have the same potential energy.

In the following sentences, fill in the blanks with the appropriate terms from the list below. high low electrolyte nonelectrolyte ion-ion attraction dipole-dipole attraction hydrogen bond dispersion force -The dashed line in the figure represents a__________________.

Measurements in Science and Medicine

Atoms, Elements, and Compounds

Chemical Bonds

Solution Concentration

Chemical Reactions

Acids and Bases

Nuclear Chemistry

Hydrocarbons: an Introduction to Organic Molecules

Hydration, Dehydration, and Alcohols

Carbonyl Compounds and Redox Reactions

Organic Acids and Bases

Condensation and Hydrolysis Reactions

Proteins

Carbohydrates

Lipids and Membranes

Nucleic Acids, Protein Synthesis, and Heredity

Filters

The addition of methanol (CH₃OH) to water can be illustrated as shown below. Based on this image, methanol would be classified as

One would expect a compound with the molecular formula C₄H₁₀ to have a lower boiling point than one with the formula C₇H₁₆.