Practice quiz
9.
-20°C = ______ °F
a.
-68 b. 32 c. -4 d. 4
(1 mi = 1.61km, 1gal = 3.785L)
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Part I Multiple Choices: Select only the best answer and circle it. (15)
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Prince George's Community College
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b.
0.00625 d. 1. 75 x 105
a.
0.102 b. 102 c. 39.2 d. 9.8
5.
1.0 m3 = ____ µm3?
a.
1.0035 c. 17.5000
a.
1.2 x 10-4 b. 1.20 x 10-4
c.
1.200 x 10-4 d. 0.0012
e.
1.20cm3 = ______mL f. 1m3 = ________cm3
b.
1.25kg = _________mg d. 1.4dm3 = _________L
a.
1.5Km = __________µm c. 6250mm = ______km
a.
16.1 b. 14.9 c. 82.3 d. None of these
a.
25 cubic decimeter c. 5 milliliter
3.
5 cubic centimeter(cm3) =
b.
5000 mL d. 0.5 cc
8.
A car gives 35mi/gal gas average. What is the gas average in km/L?
c. An iron nail
f. Vinegar
b.
Aluminum foil e. Vitamin C
a.
Baking soda d. Ice
1.
Classify each of the following as a pure substance or mixture.(3)
7.
Do the following calculation and express the answer using the correct number of significant figures. 0.0120 ÷ 100.0
3.
Fill in the blanks (3 points)
2.
How many meters are there in 6.51 miles? Use the following conversion. (1mi = 5280ft, 1ft = 12 in, 1in = 2.54cm) (4 points)
a.
Mass b. volume c. density
Part II
Problems solving (10 points)
CHM1010 (Mr. Shah)
Quiz:1A (25 points)
10.
The density of gold is 19.6 g/cm3. What is the volume of a 2kg piece of gold in cm3?
2.
The round off value for 45670 number in three significant figure is:
4.
Which number has the greatest number of significant digits?
6.
Which of the following is a homogeneous mixture?
1.
Which one of the following is considered as an intensive property of a matter?
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a. 1.0 x 106 b. 1.0 x 10-6
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a. 4570 b. 457
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a. salad dressing b. oil and vinegar
d.
all of these e. None of these
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c. 1.0 x 1018 d. 1.0 x 10-18
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c. 45700 d. 45600
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c. An egg d. glucose and water
