Chemistry 060 - Introduction to General Chemistry » Fall 2020 » Lecture Quiz 1
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Question #1
You notice that there is more traffic between 8 and 9 in the morning. This would be a(n)
A.
observation.
B.
theory.
C.
experiment.
D.
All of these
E.
hypothesis.
Question #2
Which of the following measurements are NOT equivalent? choose all that apply,,
A.
24 dL = 2.4 L
B.
84 cm = 8.4 mm
C.
15.0 ms = 0.150 s
D.
183 L = 0.183 kL
Question #3
Your car won't start. You think it might be that the battery is low. Your thought is a(n) ____________________?
A.
observation
B.
hypothesis
C.
conclusion
D.
experiment
Question #4
The amount of space occupied by a substance is its
A.
weight.
B.
density.
C.
mass.
D.
length
E.
volume.
Question #5
The cubic centimeter (cm3 or cc) has the same volume as a
A.
milliliter.
B.
centimeter.
C.
cubic inch.
D.
cubic liter.
E.
cubic decimeter.
Question #6
How many significant figures are in 39 members
A.
infinite
B.
unlimited
C.
infinity
Question #7
Which one is NOT part of the scientific method?
A.
Observations
B.
theory
C.
Experiments
D.
Hypotheses
E.
objective
Question #8
The metric unit for volume is the
A.
pint.
B.
centimeter.
C.
liter.
D.
meter.
E.
quart.
Question #9
The metric base unit for length is the
A.
millimeter.
B.
inch.
C.
kilometer.
D.
foot.
E.
meter.
Question #10
Choose the answer that is equal to 1.320 x 100
A.
0.1320
B.
13.20
C.
0
D.
1.320
E.
1.32
Question #11
Which of the following measured numbers contains the designated CORRECT number of significant figures? choose all that apply.
A.
3.0650 4 significant figures
B.
0.00302 2 significant figures
C.
0.04300 5 significant figures
D.
1.04 2 significant figures
E.
156 000 3 significant figures
Question #12
Write the correct answer for the addition of 7.5 + 2.26 + 1.311 + 2. Include the correct number of significant figures.
A.
13.1
B.
12.9
C.
13.
D.
13
Question #13
A.
0.0521 m.
B.
0.00521 km.
C.
5210 m.
D.
52.1 dm.
E.
5.21 mm.
Question #14
Find the value for Y . Give the answer in decimal notation (not scientific notation). 8.0 x 10-2 = Y x 10-4
A.
8000
B.
80
C.
800
Question #15
Convert 99 kL to dm3. Give answer in decimal notation (not scientific notation).
A.
99,000
B.
9,900
C.
990,000
Question #16
Round the number 0.675004 to two significant figures.Give the answer in decimal notation
A.
0.67
B.
0.60
C.
0.68
Question #17
Convert 342 kg to Mg. Give answer in decimal notation. Do not include units.
A.
3.420
B.
0.342
C.
34.20
Question #18
Convert the number 7.77 x 10-2 from scientific notation to decimal notation
A.
0.00777
B.
0.0777
C.
0.777
Question #19
What is the volume (in mL) of 245.2 gram of a solid that has a density of 8.47g/mL? Do not include units. Give the answer to the correct number of significant figures.
A.
28.9
B.
29.2
C.
28.4
Question #20
What is the volume of a cube that measures 4.00 cm on each side?
A.
64.00 mL
B.
64.0 mL
C.
64.0 L
D.
0.640 L
E.
16.0 mL
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