Practice quiz

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9.

-20°C = ______ °F

a.

-68 b. 32 c. -4 d. 4

(1 mi = 1.61km, 1gal = 3.785L)

...

Part I Multiple Choices: Select only the best answer and circle it. (15)

...

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


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