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Chemistry & Chemical Reactivity 9th Edition by John C. Kotz - Test Bank
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Chapter 01 - Basic Concepts of Chemistry 1. A hypothesis is a ________. a. well-tested unifying principle that explains a body of facts b. setofexperimentsdesignedtotestatheory c. tentative explanation or predication based upon experimental observations d. setofquantitativedata e. concise sta...

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  • September 23, 2023
  • 652
  • 2022/2023
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  • chemistry chemical reactivity 9th edition by joh
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,Chapter 01 - Basic Concepts of Chemistry
1. A hypothesis is a ________.
a. well-tested unifying principle that explains a body of facts
b. set of experiments designed to test a theory
c. tentative explanation or predication based upon experimental observations
d. set of quantitative data
e. concise statement of behavior that is always the same under the same conditions
ANSWER: c
POINTS: 1
HAS VARIABLES: True
TOPICS: 1.1 Chemistry and Its Methods
NOTES: Dynamic Question

2. All of the following statements concerning green chemistry are correct EXCEPT
a. it is better to prevent waste than to treat or clean up waste after it is formed.
b. synthetic methods should be designed to use and generate substances that possess little or no toxicity to
human health or the environment.
c. substances used in a chemical process should be chosen to minimize the potential for chemical accidents.
d. raw materials should be renewable whenever technically and economically practical.
e. chemical syntheses should be done at high enough temperatures to ensure harmful bacteria are destroyed.
ANSWER: e
POINTS: 1
HAS VARIABLES: False
TOPICS: 1.2 Sustainability and Green Chemistry

3. One of the following is not a description of gases. Which one is it?
a. particles far apart
b. relatively high densities
c. expands infinitely on heating
d. fills any container completely
e. easily compressed
ANSWER: b
POINTS: 1
HAS VARIABLES: True
TOPICS: 1.3 Classifying Matter
NOTES: Dynamic Question

4. Which of the following statements concerning the kinetic-molecular theory of matter is/are CORRECT?
1. Particles in a liquid vibrate back and forth about an average position.
2. Particles in a solid are packed closely together, but are not confined to specific positions.
3. Particles in a gas fly about randomly, colliding with themselves and the walls of their container.
a. 1 only b. 2 only c. 3 only d. 1 and 2 e. 1, 2, and 3
ANSWER: c
POINTS: 1
HAS VARIABLES: False
TOPICS: 1.3 Classifying Matter
Cengage Learning Testing, Powered by Cognero Page 1

,Chapter 01 - Basic Concepts of Chemistry

5. Which of the following statements concerning the kinetic-molecular theory of matter is/are CORRECT?
1. Particles in a gas move faster as the temperature increases.
2. Particles in a liquid are packed closely together, but are not confined to specific positions.
3. Particles in a gas vibrate back and forth about an average position.
a. 1 only b. 2 only c. 3 only d. 1 and 2 e. 1, 2, and 3
ANSWER: d
POINTS: 1
HAS VARIABLES: False
TOPICS: 1.3 Classifying Matter

Instructions: Use the pictures below to answer question 6:




A) B) C)




D) E)

6. Which of the above figures represents a liquid compound?
a. Figure A b. Figure B c. Figure C d. Figure D e. Figure E
ANSWER: d
POINTS: 1
HAS VARIABLES: True
TOPICS: 1.3 Classifying Matter
1.4 Elements
1.5 Compounds
NOTES: OWL | Dynamic Question

Instructions: Use the figures below to answer questions 7:




A) B) C)




D) E)
Cengage Learning Testing, Powered by Cognero Page 2

, Chapter 01 - Basic Concepts of Chemistry
7. Which of the above figures represents a gaseous element?
a. Figure A b. Figure B c. Figure C d. Figure D
e. Figure E
ANSWER: a
POINTS: 1
HAS VARIABLES: True
TOPICS: 1.3 Classifying Matter
1.4 Elements
1.5 Compounds
NOTES: OWL | Dynamic Question

Instructions: Use the pictures below to answer question 8:




A) B) C)




D) E)

8. Which of the above figure represents a mixture of two elements?
a. Figure A b. Figure B c. Figure C d. Figure D e. Figure E
ANSWER: d
POINTS: 1
HAS VARIABLES: False
TOPICS: 1.3 Classifying Matter
1.4 Elements
1.5 Compounds
NOTES: OWL

9. Which one of the following statements is correct?
a. A pure substance may be separated by filtration or distillation into two or more components.
b. A heterogeneous mixture is also known as a solution.
c. A heterogeneous mixture is composed of two or more substances in the same phase.
d. The composition is uniform throughout a homogeneous mixture.
e. The combination of a liquid and a solid always results in a heterogeneous mixture.
ANSWER: d
POINTS: 1
HAS VARIABLES: False
TOPICS: 1.3 Classifying Matter

Cengage Learning Testing, Powered by Cognero Page 3

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