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PRELIM EXAM IN CHEMISTRY

Total questions: 55

Worksheet time: 1hrs 23mins

Name
Class
Date
1.

The study of compounds that do not contain carbon.

a)

Organic Chemistry

b)

Inorganic Chemistry

c)

Biochemistry

d)

Analytical Chemistry

2.

The study of the composition, structure, and properties of matter and the changes it undergoes.

a)

Chemistry

b)

Physics

c)

Biology

d)

Social Science

3.

The study of carbon containing compounds.

a)

Organic Chemistry

b)

Inorganic Chemistry

c)

Physical Chemistry

d)

Biochemistry

4.

The study of the properties and changes in matter and their relation to energy.

a)

Physical Chemistry

b)

Biochemistry

c)

Organic Chemistry

d)

Inorganic Chemistry

5.

The identification of the components and composition of materials refers to___________________________

a)

Biochemistry

b)

Physical Chemistry

c)

Organic Chemistry

d)

Analytical Chemistry

6.

The study of substances and processes occurring in living things.

a)

Biochemistry

b)

organic Chemistry

c)

inorganic Chemistry

d)

Applied Chemistry

7.

Matter is

a)

the smallest unit of a substance that behaves like the substance

b)

the smallest unit of an element that keeps the element's chemical properties

c)

anything that has mass and takes up space

d)

a substance that cannot be broken down into simpler substances by chemical means

8.

What are significant figures?

a)

They are the reliably known digits that a measurement contains.

b)

They are diagrams representing significant atoms and molecules.

c)

They are measurements which are important to everyday life.

d)

They are units of measurement in the International System of Units.

9.

How many significant figures are in the following measurement?

2.51 m

a)

1 significant figure

b)

2 significant figures

c)

3 significant figures

d)

4 significant figures

e)

5 significant figures

10.

How many significant figures are in the following measurement?

0.008 s

a)

4 significant figures

b)

1 significant figure

c)

3 significant figures

d)

8 significant figures

11.

How many significant figures are in the following measurement?

1052.8 km

a)

5 significant figures

b)

3 significant figures

c)

10 significant figures

d)

2 significant figures

e)

4 significant figures

12.

How many significant figures are in the following measurement?

3025.000 g

a)

5 significant figures

b)

7 significant figures

c)

6 significant figures

d)

3 significant figures

e)

1 significant figure

13.

How many significant figures are in the following measurement?

500 mL

a)

At least 1 significant figure

b)

3 significant figures

c)

2 significant figures

d)

5 significant figures

e)

4 significant figures

14.

What is the following measurement rounded to 3 significant figures?

6.589 cm

a)

6.59 cm

b)

6.58 cm

c)

6.589 cm

d)

6.60 cm

e)

6.5 cm

15.

What is the following measurement rounded to 3 significant figures?

584.49 s

a)

584.4 s

b)

585 s

c)

584.5 s

d)

584 s

e)

580 s

16.

What is the following measurement rounded to 5 significant figures?

787.985 kg

a)

788 kg

b)

787.98 kg

c)

787.99 kg

d)

788.00 kg

17.

How many significant figures are in the result for the following calculation?

6.08 kg×5.0 ms6.08\ kg\times5.0\ \frac{m}{s}  

a)

3 significant figures

b)

1 significant figure

c)

2 significant figures

d)

4 significant figures

e)

5 significant figures

18.

How many significant figures are in the result for the following calculation?

65.3 J50.085 s\frac{65.3\ J}{50.085\ s}  

a)

5 significant figures

b)

2 significant figures

c)

1 significant figure

d)

3 significant figures

19.

What is the result for the following calculation? Ensure that the correct number of significant figures are included in the calculated result.

25.085 m + 16.2 m25.085\ m\ +\ 16.2\ m  

a)

41.3 m

b)

41.2085 m

c)

41.285 m

d)

41.2 m

20.

What is the result of the following calculation? Ensure that the correct number of significant figures are included in the calculated result.

12.582 s − 5.23 s12.582\ s\ -\ 5.23\ s  

a)

7.360 s

b)

7.36 s

c)

7.35 s

d)

7.352 s

e)

7.350 s

21.

For significant figures, which term is the limiting term in the following calculation?

17.2 g + 9 g + 36.333 g + 0.58 g17.2\ g\ +\ 9\ g\ +\ 36.333\ g\ +\ 0.58\ g  

a)

17.2 g

b)

9 g

c)

36.33 g

d)

0.58 g

22.
Change from standard form to scientific notation: 12,000,000
a)
12.0  x  107
b)
0.12  x  107
c)
1.2  x  106
d)
1.2  x  107
23.
Change from standard form to scientific notation:  450,000
a)
4.5  x  105
b)
45  x  105
c)
4.5  x  104
d)
4.5  x  106
24.
Change from standard form to scientific notation:  0.000398
a)
39.8  x  10-5
b)
3.98  x  10-5
c)
3.98  x  10-4
d)
39.8  x  10-6
25.
Change from standard form to scientific notation: 0.004078
a)
4.078  x  10-3
b)
4.078  x  103
c)
40.78  x  10-4
d)
.4078  x  10-2
26.
125,678,000: Change to scientific notation
a)
1.25678  x  1012
b)
.125678  x  10-9
c)
12.5678  x  108
d)
1.25678  x  108
27.
Which number is correctly written in scientific notation?
a)
5.67 x 105
b)
56.7 x 103
c)
0.567 x 106
28.
Which number is correctly written in scientific notation?
a)
8.2 x 102
b)
82 x 107
c)
3.45 x 94
29.
Change from standard form to scientific notation: 12,000,000
a)
12.0  x  107
b)
0.12  x  107
c)
1.2  x  106
d)
1.2  x  107
30.
Change from standard form to scientific notation:  0.000398
a)
39.8  x  10-5
b)
3.98  x  10-5
c)
3.98  x  10-4
d)
39.8  x  10-6
31.
How would you write 50,000 in scientific notation?
a)
50 x 105
b)
5 x 104
c)
5 x 103
d)
.5 x 103
32.

How many numbers can be in front of the decimal if the number is in correct scientific notation?

a)

Only a Zero

b)

One

c)

Two

d)

Any amount

33.
Which of the following is correct scientific notation?
a)
20.35 x 104
b)
.2035 x 104
c)
2035 4
d)
2.035 x104
34.
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
35.
Light travels at a rate of 186,000 miles per second.  Write this number in scientific notation.
a)
1.86 x 105
b)
1.86 x 104
c)
18.6 x 104
d)
186 x 103
36.
The closest galaxy to our own is over 2,500,000 light years away.  Write this number is scientific notation.
a)
2.5 x 107
b)
.25 x 107
c)
25 x 105
d)
2.5 x 106
37.

What is the very first thing you do once you receive any laboratory equipment?

a)

Start Measuring out chemicals

b)

inspect for cracks or damages

c)

Organize/ Sort your equipment

d)

Wash/Disinfect

38.
Name the equipment
a)
graduated cylinder
b)
test tube
c)
thermometer
d)
beaker
39.

Name the equipment.

a)

beaker

b)

erlenmeyer flask

c)

watch glass

d)

petri dishe

40.
Name the equipment
a)
beaker
b)
long tube
c)
graduated cylinder
d)
thermometer
41.
Name the equipment
a)
thermometer
b)
test tube rack
c)
beaker
d)
dropper pipette 
42.
Name the equipment 
a)
burette 
b)
dropper pipette
c)
stirring rod 
d)
iron stand
43.
Name the equipment 
a)
iron ring 
b)
iron stand 
c)
iron base
d)
iron tower
44.
Name the equipment
a)
test tube 
b)
test tube container 
c)
test tube stand 
d)
test tube rack
45.
Name the equipment
a)
test tube pin
b)
test tube metal
c)
test tube coil
d)
test tube clamp
46.

Name the equipment

a)
glass triangle
b)
funnel
c)
stirring rod
d)
buret
47.

Name the equipment

a)

A coaster

b)

A wire gauze

c)

A place mat

d)

A heatprof mat

48.

Name the equipment

a)

Beaker

b)

Erlenmeyer flask

c)

Florence flask

d)

Volumetric flask

49.

Name the equipment

a)

utility clamp

b)

iron ring

c)

clay triangle

d)

test tube clamp

50.

Name the equipment

a)

watch glass

b)

evaporating dish

c)

forceps

d)

mortar

51.

What piece of equipment is used to store test tubes properly instead of rolling off the lab table?

a)
test tube rack
b)
forceps
c)
ring clamp
d)
petri dish
52.

Name a proper uses for this piece of equipment.

a)

Measuring precise and accurate volume amounts

b)

Weiging out solute

c)

To hold the contents of a neutralization reaction during a titration

d)

Identifying Mass

53.

Laboratory instrument used to measure volumes of liquids

a)

beaker

b)

graduated cylinder

c)

flask

d)

pipette

54.
What piece of equipment is used to transfer substances into a container with small openings?
a)
Erlenmeyer flask
b)
tongs
c)
beaker
d)
funnel
55.

We use a thermometer to measure temperature in ...

a)

degrees Celsius

b)

degrees Fahrenheit

c)

millimeters

d)

degrees Kelvin

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