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Unit 1 Intro to Chemistry Practice Test

Total questions: 37

Worksheet time: 28mins

Name
Class
Date
1.

What is used to heat, hold, and mix large amounts of liquids?

a)

beaker

b)

flask

c)

test tube

d)

graduated cylinder

2.

Convert -30°C to Fahrenheit

a)

-22°F

b)

22°F

c)

-55°F

d)

1.1°F

3.

What equipment allows you to measure liquid's volume and measures in milliliters?

a)

test tube

b)

beaker

c)

flask

d)

graduated cylinder

4.

Eric accidentally broke a test tube and spilled a chemical on the table. Which of the following best explains what he should do next?

a)

Use water and paper towels to clean up the spill; bring the broken test tube to the teacher

b)

Throw the glass into the nearest trashcan and let the spill air dry.

c)

Quickly push the glass into the sink, wipe up the spill with the nearest cloth, and hope nobody notices.

d)

Caution his lab partners to avoid the area while he goes to inform the teacher of the small accident.

5.

What is the proper way to put out a fire on a person?

a)

Let the fire go out on its own

b)

Spray with the fire extinguisher

c)

Cover with the fire blanket

d)

Throw water on him/her

6.

Convert a - 194 Degrees Celsius to Degrees Fahrenheit:

a)

- 317 oF

b)

292 oF

c)

- 273 oF

d)

0 oF

7.

A chemical splashes into your eye. How long must you wash your eyes out to remove all materials?

a)

5 minutes

b)

15 minutes

c)

20 minutes

d)

30 minutes

8.

What is the best way to prevent a fire?

a)

Avoid wearing loose clothing

b)

Tie your hair back

c)

Do not leave a heat source unattended

d)

All of these

9.

How many milliliters are in the graduated cylinder?

a)

50.6

b)

56

c)

57.2

d)

55.1

10.

Lebron James is 6 ft, 8 in tall. What is his height in meters?

a)

2.03 m

b)

1.83 m

c)

2.08 m

d)

2.3 m

e)

1.98 m

11.

Express the following in standard notation:

8.025 x 10-8

a)

.00000008025

b)

.000000008025

c)

802,500,000,000

d)

80,250,000,000

12.

The curved surface that forms in a column of water is called the __________ .

a)

arch

b)

meniscus

c)

bowl

d)

scoop

13.
How many significant figures: 153.0 mL
a)
1
b)
2
c)
3
d)
4
14.

987 mm = _____ cm

a)

98.7 cm

b)

9,870 cm

c)

9.87 cm

d)

0.987 cm

15.
How many significant figures: 1000 mL
a)
1
b)
2
c)
3
d)
4
16.
Calculate 923 g ÷ 20312 cm3 and give your answer with the correct number of significant figures.
a)
0.04 g/cm3
b)
0.045 g/cm3
c)
0.0454 g/cm3
d)
0.05 g/cm3
17.

18 kg = _____ g

a)

180 g

b)

1,800 g

c)

1.8 g

d)

18,000 g

18.
Calculate 7.987 m - 0.54 m and give your answer with the correct number of significant figures.
a)
7.45 m
b)
7.447 m
c)
7.4 m
d)
7.5 m
19.

John is baking a cake and needs 0.5 cups of oil. He only has a spoon available for measuring. How many Tablespoons of oil does he need?

a)

4 Tbs

b)

8 Tbs

c)

16 Tbs

d)

48 Tbs

20.

Convert 478.9 mg to Hg.

a)

47.89 Hg

b)

0.004789 Hg

c)

4789000 Hg

d)

4789 Hg

21.

A football field is 100 yd long. A soccer field is 105 m long. Which one is longer and by how much?

a)

A footbal field by 4 m

b)

A footbal field by 14 m

c)

A soccer field by 14 m

d)

A soccer field by 4 m

22.
7.82 x 10-6 is an example of scientific notation. The exponent of -6 tells you your number will be very ________.
a)
Large
b)
Small
c)
Basic
23.

Marla measured the length of her classroom. The length of the classroom was 270 inches long. Conversion factor is 36 inches = 1 yard. How many yards long is the classroom?

a)

56 yards

b)

9,720 yards

c)

7 yards

d)

7.5 yards

24.
Round 1047.78 to three sig figs
a)
104
b)
105
c)
1050
d)
1050.00
25.
How many significant figures: 0.010 L
a)
1
b)
2
c)
3
d)
4
26.
All of the following have one significant figure except:
a)
100 cm
b)
0.0001 cm
c)
2 cm
d)
2.00 cm
27.

Solve. Round using SigFig math rules.

12.5 mL + 20.05 mL + 2.69 mL

a)

35 mL

b)

35.2 mL

c)

35.24 mL

d)

35.240 mL

28.
Solve and give your answer with the correct number of significant figures
129.6/3
a)
43.0
b)
43
c)

 4

d)
40
29.
Which one of these is in scientific notation?
a)
8.987000
b)
8.98 x 106
c)
80.987 x 10
d)
8.986
30.
Write 3.41 x 106 in standard form
a)
341
b)
34,100,000
c)
.0000341
d)
3,410,000
31.
Try to change the number back to standard form: 3.97  x  10-2
a)
0.000397
b)
0.0397
c)
0.0000397
d)
0.397
32.

Name this piece of equipment.

a)

hot plate

b)

graduated cylinder

c)

balance

d)

bunsun burner

33.

Convert this number into scientific notation: 950,000

a)

9.5 x 105

b)

9.5 x 10-9

c)

9.5 x 102

d)

None of the above

34.

Convert a 136 Degrees Fahrenheit to Degrees Celsius:

a)

57.8 oC

b)

330 K

c)

57.5 oF

d)

220 C

35.

Convert 35⁰F to Celsius

a)

1.6⁰

b)

1.7⁰C

c)

2.0⁰

d)

16.6⁰C

36.

Approved eye protection devices (such as goggles) are worn in the laboratory

a)

to avoid eye strain

b)

to improve your vision

c)

only if you don't have corrective glasses

d)

any time chemicals, heat, or glassware is used

37.

How long is the marker?

a)

16 1/2 cm

b)

16.5 cm

c)

16 3/4 cm

d)

16.7 cm

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