FOUNDATIONS OF COLLEGE CHEMISTRY
15TH EDITION
CHAPTER NO. 01: AN INTRODUCTION TO CHEMISTRY
MULTIPLE CHOICE QUESTION & ANSWERS
1) Why study chemistry?
a) to help inform us about our world
b) to be better able to make informed decisions
c) to help us learn a technique for identifying and solving problems
d) all of these choices
Answer: D
Difficulty: easy
Learning Objective 1: State the definition of chemistry and why the study of chemistry is
important.
Section Reference 1: Section 1.1
2) The science of chemistry may involve:
a) observation
b) hypothesis development
c) experimentation
d) all of these choices
Answer: D
Difficulty: easy
Learning Objective 1: Describe the steps involved in the scientific method.
Section Reference 1: Section 1.2
3) Which is an observation?
a) Atoms consist of protons, neutrons, and electrons.
b) All matter is composed of atoms.
c) Water is colorless.
d) Atoms can form chemical bonds by sharing electrons.
Answer: C
Difficulty: easy
,Learning Objective 1: Describe the steps involved in the scientific method.
Section Reference 1: Section 1.2
4) A tentative explanation of certain facts that provides the basis for further experimentation is
a(n) ___.
a) observation
b) hypothesis
c) theory
d) law
Answer: B
Difficulty: easy
Learning Objective 1: Describe the steps involved in the scientific method.
Section Reference 1: Section 1.2
5) A well established hypothesis is often called a(n) ___.
a) observation
b) fact
c) theory
d) law
Answer: C
Difficulty: easy
Learning Objective 1: Describe the steps involved in the scientific method.
Section Reference 1: Section 1.2
6) Which is an observation?
a) Water boils at 100 oC.
b) The specific heat of water is 4.184 J/g oC.
c) Water is a universal solvent.
d) All of the Above
Answer: D
Difficulty: easy
Learning Objective 1: Describe the steps involved in the scientific method.
Section Reference 1: Section 1.2
7) Which of the following is a “pure” substance?
a) tap water
b) trail mix
,c) sea water
d) De-ionized water
Answer: D
Difficulty: easy
Learning Objective 1: Distinguish among a pure substance, a homogeneous mixture, and a
heterogeneous mixture.
Section Reference 1: 1.4
8) Which is a scientific observation?
a) Freezing and boiling are called physical changes.
b) Water freezes at 0 °C.
c) If a substance has a density of 1.00 g/mL it must be water.
d) When a substance freezes its molecules lose potential energy.
Answer: B
Difficulty: easy
Learning Objective 1: Describe the steps involved in the scientific method.
Section Reference 1: Section 1.2
9) The statement, “An apple a day keeps the doctor away”, is best described as a(n) ___.
a) observation
b) law
c) theory
d) hypothesis
Answer: D
Difficulty: easy
Learning Objective 1: Describe the steps involved in the scientific method.
Section Reference 1: Section 1.2
10) The statement, “An atom consists of a dense nucleus surrounded by a cloud of electrons”, is
best described as a(n) ___.
a) theory
b) law
c) hypothesis
d) observation
Answer: A
, Difficulty: easy
Learning Objective 1: Describe the steps involved in the scientific method.
Section Reference 1: Section 1.2
11) An explanation that accounts for a set of facts is best known as ___.
a) experiment
b) law
c) theory
d) hypothesis
Answer: D
Difficulty: medium
Learning Objective 1: Describe the steps involved in the scientific method.
Section Reference 1: 1.2
12) Which of the following is not a matter?
a) sunlight
b) copper wire
c) alcohol
d) dust
Answer: A
Difficulty: easy
Learning Objective 1: Describe the characteristics of matter, including the states of matter.
Section Reference 1: Section 1.3
13) Which has both a definite shape and definite volume?
a) solid
b) vapor
c) gas
d) liquid
Answer: A
Difficulty: easy
Learning Objective 1: Describe the characteristics of matter, including the states of matter.
Section Reference 1: Section 1.3