Chemistry in Focus A Molecular

Chemistry in Focus A Molecular View of Our World 6th Edition by Nivaldo J. Tro – Test Bank

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Edition: 6th Edition

Format: Downloadable ZIP Fille

Resource Type: Test bank

Duration: Unlimited downloads

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Chemistry in Focus A Molecular View of Our World 6th Edition by Nivaldo J. Tro – Test Bank

ISBN: 9781305084476

1. Which of these is the best definition of matter?

a. The pull of gravity on an object.
b. Anything that has weight and volume.
c. Anything that has mass and occupies space.
d. Anything that is directly proportional to weight.
e. The measure of the amount of space an object occupies.

 

ANSWER:   c
POINTS:   1

 

2. Which of these statements is correct?

a. The amount of carbon on earth is essentially constant.
b. The amount of carbon on earth fluctuates with the seasons.
c. The amount of carbon on earth is increasing due to plant and animal growth.
d. The amount of carbon on earth is decreasing due to consumption of carbon based fuels.
e. Both B and C are correct.

 

ANSWER:   a
POINTS:   1

 

3. The French chemist Antoine Lavoisier found that the weight of objects before burning and the weight of the products after burning were equal. He concluded that the total weight did not change during a process. Which of these best describes Lavoisier’s conclusion?

a. From observation, Lavoisier created a scientific law.
b. From observation, Lavoisier created a scientific theory.
c. From scientific law, Lavoisier created a scientific theory.
d. From experimentation, Lavoisier created a scientific law.
e. From observation, Lavoisier created a scientific conclusion.

 

ANSWER:   a
POINTS:   1

 

4. When using the scientific method, before experiments are done a ___________ should be established.

a. hypothesis
b. law
c. theory
d. conclusion

 

ANSWER:   a
POINTS:   1

 

5. A statement which summarizes the data obtained from a series of observations is known as a(n) ____.

a. observation
b. law
c. theory
d. conclusion
e. experiment

 

ANSWER:   b
POINTS:   1

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