Test Bank - General, Organic, and Biological Chemistry: Structures of Life 6th Edition ( Karen C. Timberlake, 2020) All Chapters 1-24|| Latest Edition 2025

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,General, Organic and Biological Chemistry: Structures of Life, 6e, (Timberlake)
Chapter 1 Chemistry in Our Lives

1.1 Multiple-Choice Questions

1) Water, H2O, is an example of a(n)
A) chemical.
B) type of energy.
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



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, 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 toothpaste 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) sound
Answer: A
Objective: 1.1
Global Outcomes: GO2




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