,General, Organic & Biological Chemistry, 5e (Timberlake)
Chapter 1 Chemistry in Our Lives
1.1 Multiple-Choice Questions
1) Water, H2O, is an example of a(n)
A) chemical.
B) solid.
C) wave.
D) electric charge.
E) element.
Answer: A
Objective: 1.1
Global Outcomes: GO2
2) In this list, which substance can be classified as a chemical?
A) salt
B) sleep
C) cold
D) heat
E) temperature
Answer: A
Objective: 1.1
Global Outcomes: GO2
3) One example of a chemical used in toothpaste is
A) chlorine.
B) sulfur.
C) carbon dioxide.
D) calcium carbonate.
E) sugar.
Answer: D
Objective: 1.1
Global Outcomes: GO2
4) Which of the following is not a chemical?
A) salt
B) water
C) light
D) carbon dioxide
E) sugar
Answer: C
Objective: 1.1
Global Outcomes: GO2
,5) Sodium fluorophosphate is a chemical used in toothpaste to
A) make the paste white.
B) disinfect the toothbrush.
C) keep the paste from spoiling.
D) remove plaque.
E) strengthen tooth enamel.
Answer: E
Objective: 1.1
Global Outcomes: GO2
6) Titanium dioxide is a chemical used in toothpaste to
A) make the paste white.
B) disinfect the toothbrush.
C) keep the paste from spoiling.
D) remove plaque.
E) strengthen tooth enamel.
Answer: A
Objective: 1.1
Global Outcomes: GO2
7) When a part of the body is injured, substances called ________ are released.
A) aspirins
B) pain relievers
C) nitrogen oxides
D) chlorofluorocarbons
E) prostaglandins
Answer: E
Objective: 1.1
Global Outcomes: GO2
8) Which of the following is a chemical?
A) sugar
B) heat
C) light
D) noise
E) a wave
Answer: A
Objective: 1.1
Global Outcomes: GO2
9) You notice that there is more traffic between 8 and 9 in the morning. This would be a(n)
A) observation.
B) hypothesis.
C) experiment.
D) theory.
E) all the above
Answer: A
Objective: 1.2
Global Outcomes: GO1
, E) all the above
Answer: B
Objective: 1.2
Global Outcomes: GO1
11) One way to enhance your learning in chemistry is to
A) study a little every day.
B) form a study group.
C) go to office hours.
D) be an active learner.
E) all the above
Answer: E
Objective: 1.2
Global Outcomes: GO2
12) In order to enhance your learning in chemistry, you should not
A) study a little every day.
B) form a study group.
C) go to office hours.
D) be an active learner.
E) wait until the night before the exam to study.
Answer: E
Objective: 1.3
Global Outcomes: GO2
13) Which of the following would not be part of a study plan to learn chemistry?
A) study a little every day
B) skip your instructor's office hours
C) form a study group
D) read the chapter before class
E) work the sample problems
Answer: B
Objective: 1.3
Global Outcomes: GO2
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