Test Bank For Chemistry & Chemical Reactivity 9th Edition By John C. Kotz
ISBN-10: 128546253X, ISBN-13: 9781285462530
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 |
|
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 |
|
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