Question 1

Which of the following values is Avogadro's number?

Accepted Answer

A)  6 
B)  6.02 
C)  6.02 F1F1F1S1F1F1F10 1023 
D)  6.02 F1F1F1S1F1F1F10 1026 
E)  6.02 F1F1F1S1F1F1F10 10123 
A)  6 
B)  6.02 
C)  6.02 F1F1F1S1F1F1F10 1023 
D)  6.02 F1F1F1S1F1F1F10 1026 
E)  6.02 F1F1F1S1F1F1F10 10123

Question 2

According to the balanced chemical equation below, if you react 3.0 mole of butene with 3.0 mole of hydrogen, how many moles of butane would you expect to get?

Accepted Answer

A)  0.0 moles 
B)  1.0 mole 
C)  2.0 moles 
D)  3.0 moles 
E)  6.0 moles 
A)  0.0 moles 
B)  1.0 mole 
C)  2.0 moles 
D)  3.0 moles 
E)  6.0 moles

Question 3

A calorimeter is used to measure the energy content of foods because the energy measurement obtained using a calorimeter is the same as the energy we obtain by eating. Which of the following statements explains why this is the case?

Accepted Answer

A)  They are the same because both the calorimeter and body combust food to obtain only heat energy. 
B)  They are the same because both the calorimeter and body combust food in a single exothermic step. 
C)  They are the same because both the calorimeter and body combust food in a complex series of steps. 
D)  They are the same because, overall, metabolism is a combustion reaction. 
E)  Actually, they are not the same values. 
A)  They are the same because both the calorimeter and body combust food to obtain only heat energy. 
B)  They are the same because both the calorimeter and body combust food in a single exothermic step. 
C)  They are the same because both the calorimeter and body combust food in a complex series of steps. 
D)  They are the same because, overall, metabolism is a combustion reaction. 
E)  Actually, they are not the same values.

Question 4

Which of the following processes are anabolic?

Accepted Answer

A)  muscle building as a result of steroid use 
B)  releasing energy from food during the citric acid cycle 
C)  weight loss as a result of burning fat 
D)  transferring bond energy from food to ATP 
E)  All of the above 
A)  muscle building as a result of steroid use 
B)  releasing energy from food during the citric acid cycle 
C)  weight loss as a result of burning fat 
D)  transferring bond energy from food to ATP 
E)  All of the above

Question 5

During anabolism, heat is absorbed. What does the absorption of heat tell us about how these reactions occur?

Accepted Answer

A)  These reactions do not usually occur because they require energy. 
B)  These reactions occur very quickly. 
C)  These reactions occur very slowly. 
D)  These reactions are driven by heat releasing chemical reactions. 
E)  These reactions are not required by the body. 
A)  These reactions do not usually occur because they require energy. 
B)  These reactions occur very quickly. 
C)  These reactions occur very slowly. 
D)  These reactions are driven by heat releasing chemical reactions. 
E)  These reactions are not required by the body.

Question 6

Which of the following statements describe how oxygen intake relates to caloric requirements? I. Oxygen reacts with food to produce energy.
II) The larger the oxygen intake, the higher the energy output.
III) Oxygen is a product of food metabolism.

Accepted Answer

A)  All of these statements describe the relationship between oxygen intake and caloric requirements. 
B)  I and II describe the relationship between oxygen intake and caloric requirements. 
C)  II and III describe the relationship between oxygen intake and caloric requirements. 
D)  I and III describe the relationship between oxygen intake and caloric requirements. 
E)  Only II describes the relationship between oxygen intake and caloric requirements. 
A)  All of these statements describe the relationship between oxygen intake and caloric requirements. 
B)  I and II describe the relationship between oxygen intake and caloric requirements. 
C)  II and III describe the relationship between oxygen intake and caloric requirements. 
D)  I and III describe the relationship between oxygen intake and caloric requirements. 
E)  Only II describes the relationship between oxygen intake and caloric requirements.

Question 7

According to the balanced chemical equation below, if, you react 28 grams of butene with excess hydrogen, how many grams of butane would you expect to get?

Accepted Answer

A)  0.0 g 
B)  29 g 
C)  58 g 
D)  112 g 
E)  116 g 
A)  0.0 g 
B)  29 g 
C)  58 g 
D)  112 g 
E)  116 g

Question 8

Which statement best describes how the temperature of the surroundings change as a result of the reaction represented by energy diagram below?

Accepted Answer

A)  The temperature of the surroundings does not change. 
B)  The temperature of the surroundings increases. 
C)  The temperature of the surroundings decreases. 
D)  The surroundings will become very cold. 
E)  It is not possible to predict anything about the temperature of the surroundings based on this diagram. 
A)  The temperature of the surroundings does not change. 
B)  The temperature of the surroundings increases. 
C)  The temperature of the surroundings decreases. 
D)  The surroundings will become very cold. 
E)  It is not possible to predict anything about the temperature of the surroundings based on this diagram.

Question 9

The name for the heat energy released or absorbed in a chemical reaction is

Accepted Answer

A)  energy. 
B)  endothermic. 
C)  exothermic. 
D)  enthalpy. 
E)  entropy. 
A)  energy. 
B)  endothermic. 
C)  exothermic. 
D)  enthalpy. 
E)  entropy.

Question 10

Which of the following must occur for there to be a chemical reaction?

Accepted Answer

A)  Heat is released. 
B)  There is a change of state. 
C)  A gas is produced. 
D)  Bonds break and/or new ones are formed. 
E)  All of the above 
A)  Heat is released. 
B)  There is a change of state. 
C)  A gas is produced. 
D)  Bonds break and/or new ones are formed. 
E)  All of the above

Question 11

How is a nuclear reaction different from a chemical reaction?

Accepted Answer

A)  They are identical. 
B)  Only in a chemical reaction can atoms change into different atoms. 
C)  Chemical reactions involve only the nucleus of the atom. 
D)  Only in a nuclear reaction can atoms change into different atoms. 
E)  Nuclear reactions release energy and chemical reactions absorb energy. 
A)  They are identical. 
B)  Only in a chemical reaction can atoms change into different atoms. 
C)  Chemical reactions involve only the nucleus of the atom. 
D)  Only in a nuclear reaction can atoms change into different atoms. 
E)  Nuclear reactions release energy and chemical reactions absorb energy.

Question 12

Which of the following statements best describes how calorimetry is used in medicine?

Accepted Answer

A)  Calorimetry is used to feed patients. 
B)  Calorimetry is used to measure the temperature of a patient. 
C)  Calorimetry is used to measure the oxygen needs of a patient. 
D)  Calorimetry is used to assess the caloric needs of a patient. 
E)  All of the above 
A)  Calorimetry is used to feed patients. 
B)  Calorimetry is used to measure the temperature of a patient. 
C)  Calorimetry is used to measure the oxygen needs of a patient. 
D)  Calorimetry is used to assess the caloric needs of a patient. 
E)  All of the above

Question 13

What does it mean for a chemical equation to be balanced?

Accepted Answer

A)  A balanced chemical equation describes a chemical reaction found in nature. 
B)  A balanced chemical equation describes a chemical reaction that produces only some product, so there is an equal amount of reactant and product. 
C)  A balanced chemical equation contains an equal number of each type of atom on both sides of the equation. 
D)  A balanced chemical equation can run either forward or backward. 
E)  A balanced chemical equation represents a chemical reaction that is part of metabolism. 
A)  A balanced chemical equation describes a chemical reaction found in nature. 
B)  A balanced chemical equation describes a chemical reaction that produces only some product, so there is an equal amount of reactant and product. 
C)  A balanced chemical equation contains an equal number of each type of atom on both sides of the equation. 
D)  A balanced chemical equation can run either forward or backward. 
E)  A balanced chemical equation represents a chemical reaction that is part of metabolism.

Question 14

A normal blood oxygen (O2) level is 8.0 mmol/L. What is the normal mass of oxygen per liter of blood?

Accepted Answer

A)  2.50 F1F1F1S1F1F1F10 10F1F1F1S1F1F1F104 g 
B)  0.256 g 
C)  4.00 g 
D)  256 g 
E)  2.56 F1F1F1S1F1F1F10 105 g 
A)  2.50 F1F1F1S1F1F1F10 10F1F1F1S1F1F1F104 g 
B)  0.256 g 
C)  4.00 g 
D)  256 g 
E)  2.56 F1F1F1S1F1F1F10 105 g

Question 15

A reaction occurs between the large black spheres and the small grey spheres. Each of the boxes below represents different reaction conditions for that reaction. Which of the given boxes contains the reaction conditions that lead to the fastest reaction?

Accepted Answer

A)   
B)   
C)   
D)   
E)   
A)   
B)   
C)   
D)   
E)

Question 16

A molecule of oxygen, O2, has a molar mass of 32.00 g/mole. What is the mass of 4.52 F1F1F1S1F1F1F10 1023 O2 molecules?

Accepted Answer

A)  24 grams 
B)  4.52 F1F1F1S1F1F1F10 1023 amu 
C)  4.52 F1F1F1S1F1F1F10 1023 grams 
D)  0.75 grams 
E)  0.23 grams 
A)  24 grams 
B)  4.52 F1F1F1S1F1F1F10 1023 amu 
C)  4.52 F1F1F1S1F1F1F10 1023 grams 
D)  0.75 grams 
E)  0.23 grams

Question 17

What is the mass of one mole of the hydroxide ion (-OH)?

Accepted Answer

A)  8 g 
B)  15 g 
C)  17 g 
D)  7 g 
E)  5 g 
A)  8 g 
B)  15 g 
C)  17 g 
D)  7 g 
E)  5 g

Question 18

According to the balanced chemical equation below, if you react 3.0 mole of butene with 3.0 mole of hydrogen, how many grams of butane would you expect to get?

Accepted Answer

A)  0.0 grams 
B)  3.0 gram 
C)  58 grams 
D)  56 grams 
E)  170 grams 
A)  0.0 grams 
B)  3.0 gram 
C)  58 grams 
D)  56 grams 
E)  170 grams

Question 19

In the body, glucose is broken down in the presence of oxygen into carbon dioxide and water. The balanced chemical equation for this reaction is shown below. According to this equation, how many molecules of carbon dioxide are produced when three molecules of glucose are metabolized in the presence of 18 moles of oxygen? C6H12O6 + 6 O2 → 6 CO2 + 6 H2O

Accepted Answer

A)  0 
B)  6 
C)  12 
D)  18 
E)  24 
A)  0 
B)  6 
C)  12 
D)  18 
E)  24

Question 20

Jane Doe has her cholesterol measured and the resulting lab report gives a value of 0.548 F1F1F1S1F1F1F10 10-3 mol/dL. You know that the normal range of cholesterol (C27H46O) is 0.100 - 0.240 g/dL. Is Jane Doe's cholesterol within the normal range?

Accepted Answer

A)  No, it is above 0.240 g/dL. 
B)  No, it is below 0.100 g/dL. 
C)  Yes, it is between 0.100 g/dL and 0.240 g/dL. 
D)  Yes, it is above 0.240 g/dL. 
E)  Yes, it is below 0.100 g/dL. 
A)  No, it is above 0.240 g/dL. 
B)  No, it is below 0.100 g/dL. 
C)  Yes, it is between 0.100 g/dL and 0.240 g/dL. 
D)  Yes, it is above 0.240 g/dL. 
E)  Yes, it is below 0.100 g/dL.

Which of the following values is Avogadro's number?

According to the balanced chemical equation below, if you react 3.0 mole of butene with 3.0 mole of hydrogen, how many moles of butane would you expect to get?

A calorimeter is used to measure the energy content of foods because the energy measurement obtained using a calorimeter is the same as the energy we obtain by eating. Which of the following statements explains why this is the case?

Which of the following processes are anabolic?

During anabolism, heat is absorbed. What does the absorption of heat tell us about how these reactions occur?

Which of the following statements describe how oxygen intake relates to caloric requirements? I. Oxygen reacts with food to produce energy. II) The larger the oxygen intake, the higher the energy output. III) Oxygen is a product of food metabolism.

According to the balanced chemical equation below, if, you react 28 grams of butene with excess hydrogen, how many grams of butane would you expect to get?

Which statement best describes how the temperature of the surroundings change as a result of the reaction represented by energy diagram below?

The name for the heat energy released or absorbed in a chemical reaction is

Which of the following must occur for there to be a chemical reaction?

How is a nuclear reaction different from a chemical reaction?

Which of the following statements best describes how calorimetry is used in medicine?

What does it mean for a chemical equation to be balanced?

A normal blood oxygen (O₂) level is 8.0 mmol/L. What is the normal mass of oxygen per liter of blood?

A reaction occurs between the large black spheres and the small grey spheres. Each of the boxes below represents different reaction conditions for that reaction. Which of the given boxes contains the reaction conditions that lead to the fastest reaction?

A molecule of oxygen, O₂, has a molar mass of 32.00 g/mole. What is the mass of 4.52  10²³O₂ molecules?

What is the mass of one mole of the hydroxide ion (^-OH)?

According to the balanced chemical equation below, if you react 3.0 mole of butene with 3.0 mole of hydrogen, how many grams of butane would you expect to get?

Jane Doe has her cholesterol measured and the resulting lab report gives a value of 0.548  10^-3 mol/dL. You know that the normal range of cholesterol (C₂₇H₄₆O) is 0.100 - 0.240 g/dL. Is Jane Doe's cholesterol within the normal range?

Measuring Matter and Energy

Atomic Structure and Nuclear Radiation

Compounds and Molecules

Changes of State and the Gas Laws

Organic Chemistry: Hydrocarbons

Organic Chemistry and Biomolecules

Solutions, Colloids and Membranes

Acids and Bases

The Reactions of Organic Functional Groups in Biochemistry

Carbohydrates: Structure and Function

Lipids: Structure and Function

Proteins: Structure and Function

Nucleotides and Nucleic Acids

Energy and Metabolism

Filters

Exam 4: Chemical Quantities and Chemical Reactions

Which of the following values is Avogadro's number?

According to the balanced chemical equation below, if you react 3.0 mole of butene with 3.0 mole of hydrogen, how many moles of butane would you expect to get?

A calorimeter is used to measure the energy content of foods because the energy measurement obtained using a calorimeter is the same as the energy we obtain by eating. Which of the following statements explains why this is the case?

Which of the following processes are anabolic?

During anabolism, heat is absorbed. What does the absorption of heat tell us about how these reactions occur?

Which of the following statements describe how oxygen intake relates to caloric requirements? I. Oxygen reacts with food to produce energy. II) The larger the oxygen intake, the higher the energy output. III) Oxygen is a product of food metabolism.

According to the balanced chemical equation below, if, you react 28 grams of butene with excess hydrogen, how many grams of butane would you expect to get?

Which statement best describes how the temperature of the surroundings change as a result of the reaction represented by energy diagram below?

The name for the heat energy released or absorbed in a chemical reaction is

Which of the following must occur for there to be a chemical reaction?

How is a nuclear reaction different from a chemical reaction?

Which of the following statements best describes how calorimetry is used in medicine?

What does it mean for a chemical equation to be balanced?

A normal blood oxygen (O2) level is 8.0 mmol/L. What is the normal mass of oxygen per liter of blood?

A reaction occurs between the large black spheres and the small grey spheres. Each of the boxes below represents different reaction conditions for that reaction. Which of the given boxes contains the reaction conditions that lead to the fastest reaction?

A molecule of oxygen, O2, has a molar mass of 32.00 g/mole. What is the mass of 4.52  1023 O2 molecules?

What is the mass of one mole of the hydroxide ion (-OH)?

According to the balanced chemical equation below, if you react 3.0 mole of butene with 3.0 mole of hydrogen, how many grams of butane would you expect to get?

Jane Doe has her cholesterol measured and the resulting lab report gives a value of 0.548  10-3 mol/dL. You know that the normal range of cholesterol (C27H46O) is 0.100 - 0.240 g/dL. Is Jane Doe's cholesterol within the normal range?

Measuring Matter and Energy

Atomic Structure and Nuclear Radiation

Compounds and Molecules

Changes of State and the Gas Laws

Organic Chemistry: Hydrocarbons

Organic Chemistry and Biomolecules

Solutions, Colloids and Membranes

Acids and Bases

The Reactions of Organic Functional Groups in Biochemistry

Carbohydrates: Structure and Function

Lipids: Structure and Function

Proteins: Structure and Function

Nucleotides and Nucleic Acids

Energy and Metabolism

Filters

A normal blood oxygen (O₂) level is 8.0 mmol/L. What is the normal mass of oxygen per liter of blood?

A molecule of oxygen, O₂, has a molar mass of 32.00 g/mole. What is the mass of 4.52  10²³O₂ molecules?

What is the mass of one mole of the hydroxide ion (^-OH)?

Jane Doe has her cholesterol measured and the resulting lab report gives a value of 0.548  10^-3 mol/dL. You know that the normal range of cholesterol (C₂₇H₄₆O) is 0.100 - 0.240 g/dL. Is Jane Doe's cholesterol within the normal range?