, TESTBANK FOR General Chemistry 12th Edition Ebbing
Important Notes
The file includes the complete test bank, organized chapter by chapter.
A sample of selected pages has been provided for preview.
All available appendices and Excel files (if included in the original resources) are
provided.
We continuously update our files to ensure you receive the latest and most accurate
editions.
New editions are added regularly – stay connected for updates!
✅ Why Buy From Us?
📚 Complete & organized chapter-by-chapter – no missing content, no guessing.
⚡ Instant digital delivery – get your file the moment you pay, no waiting.
📅 Always up to date – we track new editions so you always get the latest version.
💬 Friendly support – real humans ready to help, anytime you need us.
🔒 Safe & secure – thousands of satisfied students trust us every semester.
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💰 Money-Back Guarantee: Not satisfied? We offer a full refund – no questions asked.
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correct version, free of charge.
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,Chapter 01 Chemistry and Measurement
1. Which one of the following discoveries led mankind to observe changes in certain rocks and minerals,
which further led to the development of ceramics, glass, and metals?
a. fire
b. rubber
c. plastic
d. neoprene
e. plasma
ANSWER: a
POINTS: 1
REFERENCES: 1.1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.1.1 - Provide examples of the contributions of chemistry
to humanity.
TOPICS: Modern Chemistry: A Brief Glimpse
KEYWORDS: remember
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
2. _____ have replaced copper wires in long-distance communication as they are cheaper and less bulky
than copper cables carrying the same information.
a. Aluminum wires
b. Ethernet cables
c. Optical fibers
d. Semaphore lines
e. Wireless antennas
ANSWER: c
POINTS: 1
REFERENCES: 1.1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.1.1 - Provide examples of the contributions of chemistry
to humanity.
TOPICS: Modern Chemistry: A Brief Glimpse
KEYWORDS: apply
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
3. Individual organisms store their genetic information in _____, which consist of two intertwined
molecular chains.
a. deoxyribonucleic acids
b. prokaryotic cells
c. peptide amino acids
d. eukaryotic cells
e. thylakoid membranes
ANSWER: a
Copyright Cengage Learning. Powered by Cognero. Page 1
,Chapter 01 Chemistry and Measurement
POINTS: 1
REFERENCES: 1.1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.1.1 - Provide examples of the contributions of chemistry
to humanity.
TOPICS: Modern Chemistry: A Brief Glimpse
KEYWORDS: remember
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
4. Which of the following is an example of the contribution of chemistry in the energy sector? Select all
that apply.
a. Creation of batteries and solar cells.
b. Invention of nuclear reactors.
c. Development of renewable energy policies.
d. Synthesis of biofuel from organic matter.
e. Hardening of wind energy.
ANSWER: a, d
POINTS: 1
REFERENCES: 1.2
QUESTION TYPE: Multiple Response
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.1.1 - Provide examples of the contributions of chemistry
to humanity.
TOPICS: Contributions of Chemistry to Humanity
KEYWORDS: apply
OTHER: general chemistry
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
5. What is a scientific theory?
a. It is a collection of experimental data.
b. It is an assertion of scientific fact.
c. It is a guess about natural phenomena.
d. It is a fundamental relationship of nature.
e. It is an explanation of natural phenomena that has undergone significant testing.
ANSWER: e
POINTS: 1
REFERENCES: 1.2
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.2.1 - Explain how the scientific method is an approach to
practicing chemistry.
TOPICS: general concepts scientific method
KEYWORDS: understand
Copyright Cengage Learning. Powered by Cognero. Page 2
,Chapter 01 Chemistry and Measurement
OTHER: general chemistry
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
6. An untested explanation of a series of experimental observations is called _____.
a. a hypothesis
b. a theory
c. a law
d. an experiment
e. the scientific method
ANSWER: a
POINTS: 1
REFERENCES: 1.2
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.2.1 - Explain how the scientific method is an approach to
practicing chemistry.
TOPICS: general concepts scientific method
KEYWORDS: understand
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
7. Which of the following statements concerning experiment and explanation is/are true?
1. A law is always given in the form of a mathematical expression.
2. Once a hypothesis passes one or two tests it is considered a theory.
3. Observation is a key component of the scientific method.
a. 1 only
b. 2 only
c. 3 only
d. 1 and 2
e. 1, 2, and 3
ANSWER: c
POINTS: 1
REFERENCES: 1.2
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.2.1 - Explain how the scientific method is an approach to
practicing chemistry.
TOPICS: general concepts scientific method
KEYWORDS: understand
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
8. A(n) _____ is an observation of natural phenomena carried out in a controlled manner so that the
results can be duplicated and rational conclusions made.
a. theory
b. experiment
Copyright Cengage Learning. Powered by Cognero. Page 3
,Chapter 01 Chemistry and Measurement
c. hypothesis
d. anomaly
e. law
ANSWER: b
POINTS: 1
REFERENCES: 1.2
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.2.1 - Explain how the scientific method is an approach to practicing c
TOPICS: Experiment and Explanation
KEYWORDS: understand
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
9. A(n) _____ is a concise statement or mathematical equation about a fundamental relationship or
regularity of nature.
a. experiment
b. hypothesis
c. anomaly
d. law
e. theory
ANSWER: d
POINTS: 1
REFERENCES: 1.2
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.2.1 - Explain how the scientific method is an approach to
practicing chemistry.
TOPICS: Experiment and Explanation
KEYWORDS: understand
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
10. A saline solution similar to that used for intravenous drips is made by dissolving 0.45 g sodium
chloride in 50.00 g water. Which of the following statements concerning the saline solution and the law of
conservation of mass is/are correct?
1. The mass of the saline solution is greater than the mass of water.
2. The mass of the saline solution is equal to the combined mass of sodium chloride and water.
3. The mass of the saline solution is greater than the mass of the sodium chloride.
a. 1 only
b. 2 only
c. 3 only
d. 1 and 2
e. 1, 2, and 3
ANSWER: e
POINTS: 1
Copyright Cengage Learning. Powered by Cognero. Page 4
,Chapter 01 Chemistry and Measurement
REFERENCES: 1.3
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.3.1 - Apply the law of the conservation of mass.
TOPICS: general concepts matter
KEYWORDS: apply
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
11. A 54.0-g sample of sodium is burned in the air to form sodium oxide. The mass of sodium oxide must
be
a. less than 54.0 g.
b. greater than 54.0 g.
c. equal to 54.0 g.
d. equal to the mass of sodium plus the mass of oxygen reacting.
e. equal to 54.0 g plus the mass of unreacted sodium.
ANSWER: b
POINTS: 1
REFERENCES: 1.3
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.3.1 - Apply the law of the conservation of mass.
TOPICS: general concepts matter
KEYWORDS: apply
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
12. A sample of magnesium is burned in oxygen to form magnesium oxide. What mass of oxygen is
consumed if 74.62 g magnesium oxide is formed from 45.00 g magnesium?
a. 29.62 g
b. 28.62 g
c. 29.38 g
d. 119.38 g
e. 119.62 g
ANSWER: a
POINTS: 1
REFERENCES: 1.3
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.3.1 - Apply the law of the conservation of mass.
TOPICS: general concepts matter
KEYWORDS: apply
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
13. In a certain chemical reaction, 9.11 g of compound A is added to 8.82 g of compound B. Once the
Copyright Cengage Learning. Powered by Cognero. Page 5
,Chapter 01 Chemistry and Measurement
reaction is complete, 1.38 g of compound A and 1.61 g of compound B remain. What mass of products
was produced?
a. 20.92 g
b. 17.93 g
c. 14.94 g
d. 19.31 g
e. 19.54 g
ANSWER: c
POINTS: 1
REFERENCES: 1.3
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.3.1 - Apply the law of the conservation of mass.
TOPICS: general concepts matter
KEYWORDS: apply | Law of Conservation of Mass
OTHER: general chemistry
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
14. A 7.45 g sample of calcium carbonate completely decomposes into calcium oxide (lime) and carbon
dioxide gas when heated. If 4.17 g calcium oxide is produced, what mass of carbon dioxide must have
been formed?
a. 3.28 g
b. 11.62 g
c. 31.10 g
d. 3.29 g
e. 11.65 g
ANSWER: a
POINTS: 1
REFERENCES: 1.3
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.3.1 - Apply the law of the conservation of mass.
TOPICS: general concepts matter
KEYWORDS: apply
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
15. A sample of cesium carbonate, weighing 3.80 g, requires 1.90 g of hydrogen bromide gas to
completely decompose to water, cesium bromide, and carbon dioxide gas. The total mass of water and
cesium bromide formed is 5.20 g and no hydrogen bromide or cesium carbonate remains. According to
the law of conservation of mass, what mass of carbon dioxide must have been formed?
a. 0.50 g
b. 1.40 g
c. 5.49 g
d. 10.90 g
e. 1.90 g
Copyright Cengage Learning. Powered by Cognero. Page 6
,Chapter 01 Chemistry and Measurement
ANSWER: a
POINTS: 1
REFERENCES: 1.3
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.3.1 - Apply the law of the conservation of mass.
TOPICS: general concepts matter
KEYWORDS: apply
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
16. Sodium oxide reacts with water to produce sodium hydroxide. Suppose 11.1 g of sodium oxide is
combined with 38.7 g of water. When the reaction is complete, all the sodium oxide has been consumed.
According to the law of conservation of mass, which is a true statement?
a. The mass of sodium hydroxide produced must equal 49.8 g.
b. The mass of unreacted water must equal 27.6 g.
c. The mass of sodium hydroxide produced must equal 11.1 g.
d. The mass of water consumed must equal 11.1 g.
e. The mass of sodium hydroxide produced plus the mass of unreacted water must equal 49.8 g.
ANSWER: e
POINTS: 1
REFERENCES: 1.3
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.3.1 - Apply the law of the conservation of mass.
TOPICS: general concepts matter
KEYWORDS: analyze | Law of Conservation of Mass
OTHER: general chemistry
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
17. After a certain chemical reaction has been completed, it is found that 19.6 g of product was produced.
According to the law of conservation of mass, which statement must be true?
a. The total mass consumed of all reactants was 19.6 g.
b. The mass consumed by each reactant was 19.6 g.
c. The mass of reactants consumed depends on the number of reactants present.
d. Before the reaction started, there were 19.6 g total of all reactants.
e. Before the reaction started, there were 19.6 g of each reactant.
ANSWER: a
POINTS: 1
REFERENCES: 1.3
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.3.1 - Apply the law of the conservation of mass.
TOPICS: general concepts matter
Copyright Cengage Learning. Powered by Cognero. Page 7
, Chapter 01 Chemistry and Measurement
KEYWORDS: apply | Law of Conservation of Mass
OTHER: general chemistry
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
18. The state of matter for an object that has both definite volume and definite shape is the
a. gaseous state.
b. solid state.
c. mixed state.
d. elemental state.
e. liquid state.
ANSWER: b
POINTS: 1
REFERENCES: 1.4
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.4.1 - Compare and contrast the three common states of
matter: solid, liquid, and gas.
TOPICS: general concepts matter
KEYWORDS: remember | states of matter
OTHER: general chemistry
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
19. The state of matter for an object that has a definite volume but not a definite shape is the
a. elemental state.
b. gaseous state.
c. mixed state.
d. liquid state.
e. solid state.
ANSWER: d
POINTS: 1
REFERENCES: 1.4
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.4.1 - Compare and contrast the three common states of
matter: solid, liquid, and gas.
TOPICS: general concepts matter
KEYWORDS: remember | states of matter
OTHER: general chemistry
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
20. What happens to solids when they are heated at high temperatures?
a. Immediately solid becomes gas.
b. Solids melt into liquid.
Copyright Cengage Learning. Powered by Cognero. Page 8
Important Notes
The file includes the complete test bank, organized chapter by chapter.
A sample of selected pages has been provided for preview.
All available appendices and Excel files (if included in the original resources) are
provided.
We continuously update our files to ensure you receive the latest and most accurate
editions.
New editions are added regularly – stay connected for updates!
✅ Why Buy From Us?
📚 Complete & organized chapter-by-chapter – no missing content, no guessing.
⚡ Instant digital delivery – get your file the moment you pay, no waiting.
📅 Always up to date – we track new editions so you always get the latest version.
💬 Friendly support – real humans ready to help, anytime you need us.
🔒 Safe & secure – thousands of satisfied students trust us every semester.
🛡️Our Guarantees
💰 Money-Back Guarantee: Not satisfied? We offer a full refund – no questions asked.
🔄 Wrong File? No Problem: Contact us and we will replace it immediately with the
correct version, free of charge.
⏰ 24/7 Support: We are always here – reach out anytime and expect a fast response.
Contact Email:
,Chapter 01 Chemistry and Measurement
1. Which one of the following discoveries led mankind to observe changes in certain rocks and minerals,
which further led to the development of ceramics, glass, and metals?
a. fire
b. rubber
c. plastic
d. neoprene
e. plasma
ANSWER: a
POINTS: 1
REFERENCES: 1.1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.1.1 - Provide examples of the contributions of chemistry
to humanity.
TOPICS: Modern Chemistry: A Brief Glimpse
KEYWORDS: remember
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
2. _____ have replaced copper wires in long-distance communication as they are cheaper and less bulky
than copper cables carrying the same information.
a. Aluminum wires
b. Ethernet cables
c. Optical fibers
d. Semaphore lines
e. Wireless antennas
ANSWER: c
POINTS: 1
REFERENCES: 1.1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.1.1 - Provide examples of the contributions of chemistry
to humanity.
TOPICS: Modern Chemistry: A Brief Glimpse
KEYWORDS: apply
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
3. Individual organisms store their genetic information in _____, which consist of two intertwined
molecular chains.
a. deoxyribonucleic acids
b. prokaryotic cells
c. peptide amino acids
d. eukaryotic cells
e. thylakoid membranes
ANSWER: a
Copyright Cengage Learning. Powered by Cognero. Page 1
,Chapter 01 Chemistry and Measurement
POINTS: 1
REFERENCES: 1.1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.1.1 - Provide examples of the contributions of chemistry
to humanity.
TOPICS: Modern Chemistry: A Brief Glimpse
KEYWORDS: remember
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
4. Which of the following is an example of the contribution of chemistry in the energy sector? Select all
that apply.
a. Creation of batteries and solar cells.
b. Invention of nuclear reactors.
c. Development of renewable energy policies.
d. Synthesis of biofuel from organic matter.
e. Hardening of wind energy.
ANSWER: a, d
POINTS: 1
REFERENCES: 1.2
QUESTION TYPE: Multiple Response
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.1.1 - Provide examples of the contributions of chemistry
to humanity.
TOPICS: Contributions of Chemistry to Humanity
KEYWORDS: apply
OTHER: general chemistry
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
5. What is a scientific theory?
a. It is a collection of experimental data.
b. It is an assertion of scientific fact.
c. It is a guess about natural phenomena.
d. It is a fundamental relationship of nature.
e. It is an explanation of natural phenomena that has undergone significant testing.
ANSWER: e
POINTS: 1
REFERENCES: 1.2
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.2.1 - Explain how the scientific method is an approach to
practicing chemistry.
TOPICS: general concepts scientific method
KEYWORDS: understand
Copyright Cengage Learning. Powered by Cognero. Page 2
,Chapter 01 Chemistry and Measurement
OTHER: general chemistry
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
6. An untested explanation of a series of experimental observations is called _____.
a. a hypothesis
b. a theory
c. a law
d. an experiment
e. the scientific method
ANSWER: a
POINTS: 1
REFERENCES: 1.2
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.2.1 - Explain how the scientific method is an approach to
practicing chemistry.
TOPICS: general concepts scientific method
KEYWORDS: understand
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
7. Which of the following statements concerning experiment and explanation is/are true?
1. A law is always given in the form of a mathematical expression.
2. Once a hypothesis passes one or two tests it is considered a theory.
3. Observation is a key component of the scientific method.
a. 1 only
b. 2 only
c. 3 only
d. 1 and 2
e. 1, 2, and 3
ANSWER: c
POINTS: 1
REFERENCES: 1.2
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.2.1 - Explain how the scientific method is an approach to
practicing chemistry.
TOPICS: general concepts scientific method
KEYWORDS: understand
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
8. A(n) _____ is an observation of natural phenomena carried out in a controlled manner so that the
results can be duplicated and rational conclusions made.
a. theory
b. experiment
Copyright Cengage Learning. Powered by Cognero. Page 3
,Chapter 01 Chemistry and Measurement
c. hypothesis
d. anomaly
e. law
ANSWER: b
POINTS: 1
REFERENCES: 1.2
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.2.1 - Explain how the scientific method is an approach to practicing c
TOPICS: Experiment and Explanation
KEYWORDS: understand
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
9. A(n) _____ is a concise statement or mathematical equation about a fundamental relationship or
regularity of nature.
a. experiment
b. hypothesis
c. anomaly
d. law
e. theory
ANSWER: d
POINTS: 1
REFERENCES: 1.2
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.2.1 - Explain how the scientific method is an approach to
practicing chemistry.
TOPICS: Experiment and Explanation
KEYWORDS: understand
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
10. A saline solution similar to that used for intravenous drips is made by dissolving 0.45 g sodium
chloride in 50.00 g water. Which of the following statements concerning the saline solution and the law of
conservation of mass is/are correct?
1. The mass of the saline solution is greater than the mass of water.
2. The mass of the saline solution is equal to the combined mass of sodium chloride and water.
3. The mass of the saline solution is greater than the mass of the sodium chloride.
a. 1 only
b. 2 only
c. 3 only
d. 1 and 2
e. 1, 2, and 3
ANSWER: e
POINTS: 1
Copyright Cengage Learning. Powered by Cognero. Page 4
,Chapter 01 Chemistry and Measurement
REFERENCES: 1.3
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.3.1 - Apply the law of the conservation of mass.
TOPICS: general concepts matter
KEYWORDS: apply
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
11. A 54.0-g sample of sodium is burned in the air to form sodium oxide. The mass of sodium oxide must
be
a. less than 54.0 g.
b. greater than 54.0 g.
c. equal to 54.0 g.
d. equal to the mass of sodium plus the mass of oxygen reacting.
e. equal to 54.0 g plus the mass of unreacted sodium.
ANSWER: b
POINTS: 1
REFERENCES: 1.3
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.3.1 - Apply the law of the conservation of mass.
TOPICS: general concepts matter
KEYWORDS: apply
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
12. A sample of magnesium is burned in oxygen to form magnesium oxide. What mass of oxygen is
consumed if 74.62 g magnesium oxide is formed from 45.00 g magnesium?
a. 29.62 g
b. 28.62 g
c. 29.38 g
d. 119.38 g
e. 119.62 g
ANSWER: a
POINTS: 1
REFERENCES: 1.3
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.3.1 - Apply the law of the conservation of mass.
TOPICS: general concepts matter
KEYWORDS: apply
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
13. In a certain chemical reaction, 9.11 g of compound A is added to 8.82 g of compound B. Once the
Copyright Cengage Learning. Powered by Cognero. Page 5
,Chapter 01 Chemistry and Measurement
reaction is complete, 1.38 g of compound A and 1.61 g of compound B remain. What mass of products
was produced?
a. 20.92 g
b. 17.93 g
c. 14.94 g
d. 19.31 g
e. 19.54 g
ANSWER: c
POINTS: 1
REFERENCES: 1.3
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.3.1 - Apply the law of the conservation of mass.
TOPICS: general concepts matter
KEYWORDS: apply | Law of Conservation of Mass
OTHER: general chemistry
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
14. A 7.45 g sample of calcium carbonate completely decomposes into calcium oxide (lime) and carbon
dioxide gas when heated. If 4.17 g calcium oxide is produced, what mass of carbon dioxide must have
been formed?
a. 3.28 g
b. 11.62 g
c. 31.10 g
d. 3.29 g
e. 11.65 g
ANSWER: a
POINTS: 1
REFERENCES: 1.3
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.3.1 - Apply the law of the conservation of mass.
TOPICS: general concepts matter
KEYWORDS: apply
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
15. A sample of cesium carbonate, weighing 3.80 g, requires 1.90 g of hydrogen bromide gas to
completely decompose to water, cesium bromide, and carbon dioxide gas. The total mass of water and
cesium bromide formed is 5.20 g and no hydrogen bromide or cesium carbonate remains. According to
the law of conservation of mass, what mass of carbon dioxide must have been formed?
a. 0.50 g
b. 1.40 g
c. 5.49 g
d. 10.90 g
e. 1.90 g
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,Chapter 01 Chemistry and Measurement
ANSWER: a
POINTS: 1
REFERENCES: 1.3
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.3.1 - Apply the law of the conservation of mass.
TOPICS: general concepts matter
KEYWORDS: apply
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
16. Sodium oxide reacts with water to produce sodium hydroxide. Suppose 11.1 g of sodium oxide is
combined with 38.7 g of water. When the reaction is complete, all the sodium oxide has been consumed.
According to the law of conservation of mass, which is a true statement?
a. The mass of sodium hydroxide produced must equal 49.8 g.
b. The mass of unreacted water must equal 27.6 g.
c. The mass of sodium hydroxide produced must equal 11.1 g.
d. The mass of water consumed must equal 11.1 g.
e. The mass of sodium hydroxide produced plus the mass of unreacted water must equal 49.8 g.
ANSWER: e
POINTS: 1
REFERENCES: 1.3
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.3.1 - Apply the law of the conservation of mass.
TOPICS: general concepts matter
KEYWORDS: analyze | Law of Conservation of Mass
OTHER: general chemistry
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
17. After a certain chemical reaction has been completed, it is found that 19.6 g of product was produced.
According to the law of conservation of mass, which statement must be true?
a. The total mass consumed of all reactants was 19.6 g.
b. The mass consumed by each reactant was 19.6 g.
c. The mass of reactants consumed depends on the number of reactants present.
d. Before the reaction started, there were 19.6 g total of all reactants.
e. Before the reaction started, there were 19.6 g of each reactant.
ANSWER: a
POINTS: 1
REFERENCES: 1.3
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.3.1 - Apply the law of the conservation of mass.
TOPICS: general concepts matter
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, Chapter 01 Chemistry and Measurement
KEYWORDS: apply | Law of Conservation of Mass
OTHER: general chemistry
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
18. The state of matter for an object that has both definite volume and definite shape is the
a. gaseous state.
b. solid state.
c. mixed state.
d. elemental state.
e. liquid state.
ANSWER: b
POINTS: 1
REFERENCES: 1.4
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.4.1 - Compare and contrast the three common states of
matter: solid, liquid, and gas.
TOPICS: general concepts matter
KEYWORDS: remember | states of matter
OTHER: general chemistry
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
19. The state of matter for an object that has a definite volume but not a definite shape is the
a. elemental state.
b. gaseous state.
c. mixed state.
d. liquid state.
e. solid state.
ANSWER: d
POINTS: 1
REFERENCES: 1.4
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
LEARNING OBJECTIVES: GENE.EBBI.13.1.4.1 - Compare and contrast the three common states of
matter: solid, liquid, and gas.
TOPICS: general concepts matter
KEYWORDS: remember | states of matter
OTHER: general chemistry
DATE CREATED: 5/6/2025 7:31 AM
DATE MODIFIED: 5/6/2025 7:31 AM
20. What happens to solids when they are heated at high temperatures?
a. Immediately solid becomes gas.
b. Solids melt into liquid.
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