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.   hypothesis.
B.   experiment.
C.   All of these
D.   theory.
E.   observation.
Question #2
Which of the following measurements are NOT equivalent? choose all that apply,,
A.   24 dL = 2.4 L
B.   15.0 ms = 0.150 s
C.   84 cm = 8.4 mm
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.   hypothesis
B.   experiment
C.   conclusion
D.   observation
Question #4
The amount of space occupied by a substance is its
A.   length
B.   mass.
C.   weight.
D.   density.
E.   volume.
Question #5
The cubic centimeter (cm3 or cc) has the same volume as a
A.   cubic decimeter.
B.   milliliter.
C.   centimeter.
D.   cubic liter.
E.   cubic inch.
Question #6
How many significant figures are in 39 members
A.   unlimited
B.   infinite
C.   infinity
Question #7
Which one is NOT part of the scientific method?
A.   Observations
B.   Hypotheses
C.   objective
D.   Experiments
E.   theory
Question #8
The metric unit for volume is the
A.   quart.
B.   liter.
C.   pint.
D.   meter.
E.   centimeter.
Question #9
The metric base unit for length is the
A.   kilometer.
B.   meter.
C.   millimeter.
D.   inch.
E.   foot.
Question #10
Choose the answer that is equal to 1.320 x 100
A.   1.32
B.   0.1320
C.   13.20
D.   1.320
E.   0
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.   1.04 2 significant figures
C.   0.00302 2 significant figures
D.   156 000 3 significant figures
E.   0.04300 5 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.   0.00521 km.
B.   52.1 dm.
C.   5210 m.
D.   0.0521 m.
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.   800
C.   80
Question #15
Convert 99 kL to dm3. Give answer in decimal notation (not scientific notation).
A.   99,000
B.   990,000
C.   9,900
Question #16
Round the number 0.675004 to two significant figures.Give the answer in decimal notation
A.   0.60
B.   0.67
C.   0.68
Question #17
Convert 342 kg to Mg. Give answer in decimal notation. Do not include units.
A.   3.420
B.   34.20
C.   0.342
Question #18
Convert the number 7.77 x 10-2 from scientific notation to decimal notation
A.   0.0777
B.   0.00777
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.   29.2
B.   28.9
C.   28.4
Question #20
What is the volume of a cube that measures 4.00 cm on each side?
A.   0.640 L
B.   16.0 mL
C.   64.0 mL
D.   64.00 mL
E.   64.0 L

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