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Chemistry
Raymond Chang
10th edition
Chapter 1
Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
Question 1
A compound can be separated into its
constituent elements by physical means.
A) True
B) False
Question 2
A mixture can be separated into its constituent
chemical substances by physical means.
A) True
B) False
Question 3
What would be the length in centimeters of one
side of a cube that has a volume of one
liter?
A) 1 cm
B) 10 cm
C) 100 cm
D) 100 cm
Question 4
An object changes by 10 degrees Celsius.
Express this temperature change in Kelvin
units.
A) 283 K
B) 10 K
C) -263 K
D) Cannot be determined without knowing
the initial and final temperature
Question 5
The scientific method is a systematic process
in which the experimental results (data) are
altered to support the researcher's
hypothesis.
A) True
B) False
Question 6
Which of the following is the appropriate
conversion factor to use to convert a
measurement from units of grams to units
of kilograms?
A) 1 g/1000 kg
B) 1000 kg/1 g
C) 1000 g/1 kg
D) 1 kg/1000 g
Question 7
Which of the following conversion factors could
be used to convert units of g/mL to units of
g/L?
A) 1 mL/1000 L
B) 1000 mL/1 L
C) 1000 L/ 1 mL
D) 1 L/ 1000 mL
Question 8
If 20.0 g of sugar are added to 1250 mg of
sugar, what is the total mass of sugar
expressed in grams with the appropriate
number of significant digits?
A) 21.250 g
B) 21.25 g
C) 21.3 g
D) 21 g
Question 9
Which of the following could be used to convert
10 cm2 to mm2?
A) 10 cm2 X 1 mm2/10 cm2
B) 10 cm2 X 1 cm2/10 mm2
C) 10 cm2 X 10 mm2/1 cm2
D) 10 cm2 X 102 mm2/1 cm2
Question 10
What is the area in mm3 of a cube that has
sides with a length of 1.0 cm?
A) 10.0 mm3
B) 100. mm3
C) 0.0100 mm3
D) 1.00 x 103 mm3
Question 11
The formation of the Universe is traced back to
the Big Bang. This is an example of a
A) hypothesis
B) observation
C) theory
D) law
E) all of the above
Question 12
Invisible substances such as air are not
examples of matter.
A) True
B) False
Question 13
Which of the following best describes a sample
of milk?
A) Pure substance
B) Homogeneous mixture
C) Heterogeneous mixture
D) All of the above
E) None of the above
Question 14
Which of the following cannot be used as a
method of separation for the components of
a mixture?
A) Distillation
B) Sublimation
C) Filtration
D) Condensation
E) Extraction
Question 15
The liquid state of matter
A) has a defined shape and a defined
volume.
B) has a defined shape but no defined
volume.
C) has a defined volume but no defined
shape.
D) has no defined shape and no defined
volume.
Question 16
Which of the following is not an SI unit of
measurement?
A) gram
B) meter
C) second
D) Joule
E) Kelvin
Question 17
The quantity 100 pm is the same as
A) 10-12 m.
B) 10-1 nm.
C) 1.0 x 10-2 nm.
D) 1.0 x 102 nm.
E) none of the above.
Question 18
How many significant figures are in the quantity
490 book pages?
A) 0
B) 1
C) 2
D) 3
E) none of the above
Question 19
Which of the following expressions is false?
A) 1 L = 1 dm3
B) 100 cm3 = 10-1 dm3
C) 1 dm3 = 1 mL
D) 1 m3 = 1000 mm3
E) 10-6 mm3 = 10-3 mm3
Question 20
What is the relationship between the
magnitude of a degree Celsius and a
degree Fahrenheit?
A) 1°C = 1°F
B) 1°C = (5/9)°F
C) 1°C = (9/5)°F
D) 1°C = (5/9)°F - 32
E) 1°C = (5/9)°F + 32
Answer Key – Chapter 1
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