1. A hypothesis is a _____.
a. concise statement of behavior that is always the same under the same conditions
b. set of quantitative data
c. tentative explanation or predication based upon experimental observations
d. well-tested unifying principle that explains a body of facts
e. mathematical formula that models a pattern of behavior
ANSWER: c
POINTS: 1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: True
TOPICS: 1.1 Chemistry and Its Methods
NOTES: Dynamic Question
DATE CREATED: 3/5/2014 6:30 PM
DATE MODIFIED: 1/29/2018 4:02 AM
2. Which of the following statements concerning green chemistry is not correct?
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 pose minimal risk for accidents.
d. Raw materials should be renewable whenever technically and economically practical.
e. Chemical syntheses should be done at extremely high temperatures to ensure harmful bacteria are destroyed.
ANSWER: e
POINTS: 1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
TOPICS: 1.2 Sustainability and Green Chemistry
DATE CREATED: 3/5/2014 6:30 PM
DATE MODIFIED: 1/29/2018 4:07 AM
3. One of the following is not a description of gases. Which one is it?
a. easily compressed
b. definite shape
c. relatively low densities
d. particles far apart
e. expands infinitely on heating
ANSWER: b
POINTS: 1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: True
TOPICS: 1.3 Classifying Matter
NOTES: Dynamic Question
DATE CREATED: 3/5/2014 6:30 PM
DATE MODIFIED: 3/5/2014 6:30 PM
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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
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
TOPICS: 1.3 Classifying Matter
DATE CREATED: 3/5/2014 6:30 PM
DATE MODIFIED: 3/5/2014 6:30 PM
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 their average position.
a. 1 only b. 2 only c. 3 only d. 1 and 2
e. 1, 2, and 3
ANSWER: d
POINTS: 1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
TOPICS: 1.3 Classifying Matter
DATE CREATED: 3/5/2014 6:30 PM
DATE MODIFIED: 1/29/2018 4:09 AM
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
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,Chapter 01
QUESTION TYPE: Multiple Choice
HAS VARIABLES: True
PREFACE NAME: Matching 1
TOPICS: 1.3 Classifying Matter
1.4 Elements
1.5 Compounds
NOTES: OWL | Dynamic Question
DATE CREATED: 3/5/2014 6:30 PM
DATE MODIFIED: 3/5/2014 6:30 PM
Instructions: Use the figures below to answer questions 7:
A) B) C)
D) E)
7. Which of the above figures represents a homogeneous mixture?
a. Figure E b. Figure A c. Figure B d. Figure C
e. Figure D
ANSWER: a
POINTS: 1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: True
PREFACE NAME: Matching 2
TOPICS: 1.3 Classifying Matter
1.4 Elements
1.5 Compounds
NOTES: OWL | Dynamic Question
DATE CREATED: 1/29/2018 4:18 AM
DATE MODIFIED: 1/29/2018 4:41 AM
Instructions: Use the pictures below to answer question 8:
A) B) C)
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, Chapter 01
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
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
PREFACE NAME: Matching 3
TOPICS: 1.3 Classifying Matter
1.4 Elements
1.5 Compounds
NOTES: OWL
DATE CREATED: 3/5/2014 6:30 PM
DATE MODIFIED: 3/5/2014 6:30 PM
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
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
TOPICS: 1.3 Classifying Matter
DATE CREATED: 3/5/2014 6:30 PM
DATE MODIFIED: 3/5/2014 6:30 PM
10. Which of the following is not a mixture?
a. sea shells
b. ice cream
c. gasoline
d. wine
e. diamond
ANSWER: e
POINTS: 1
QUESTION TYPE: Multiple Choice
HAS VARIABLES: True
TOPICS: 1.3 Classifying Matter
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