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Worksheets

CHOICE

Total questions: 97

Worksheet time: 2hrs 58mins

Name
Class
Date
1.

The following statements describe a physical property EXCEPT one.

a)

Ice melts when heated

b)

Aluminum is a silver-colored metal

c)

The density of water is 1g/cm3

d)

An iron bar rusts

2.

In identifying a sample of a pure substance, which may be its chemical property?

a)

Its mass is 26.87 g

b)

It melts when heated

c)

It burns in air

d)

It is a good heat conductor

3.

A classification of matter that is made up on only 1 type of particle is called

a)

a heterogeneous mixture

b)

a pure substance

c)

a homogeneous mixture

d)

a blender

4.

Blood is a fluid found in the bodies of humans and other animals. It can be physically separated into plasma, red blood cells and white blood cells. Blood is a ___________________

a)

pure substance

b)

mixture

5.

A marshmallow is toasted over a campfire is;

a)

Physical Change

b)

Chemical Change

6.
This picture represents: 
a)
Element
b)
Compound
c)
Mixture of Elements
d)
Mixture of Compounds
7.
Which is NOT a chemical change?
a)
Leaves changing colors in the fall
b)
Iron rusting
c)
Digesting Lunch
d)
Ice Melting
8.

Aluminium foil is an example of a.....

a)
pure element
b)
pure compound
c)
heterogeneous mixture
d)
homogeneous mixture
9.

Which of the following is a chemical property?

a)

Melting point

b)

Ductility

c)

Colour

d)

Flammability

10.
Which of the following can only be observed when it is changing composition?
a)
chemical property
b)
physical property
11.

1.Particles cannot change position in a ________

a)

solid state

b)

liquid state

c)

gas state

12.

What kind of physical property is this? Volume of Milk

a)

intensive

b)

extensive

13.

What kind of physical property is this? Density of mercury

a)

intensive

b)

extensive

14.
This picture represents which of the following?
a)
element
b)
compound
c)

homogeneous mixture

d)

heterogeneous mixture

15.
Which of the following is NOT a pure substance?
a)
milk
b)
oxygen
c)
water
d)
carbon dioxide
16.
Which of the following is a heterogeneous mixture?
a)
water in a swimming pool
b)
sugar water
c)
a jar of mixed nuts
d)
stainless steel
17.
This image represents a(n)
a)
element
b)
compound
c)
mixture
d)
colloid
18.
The air that fills this room would be classified as
a)
an element
b)
a compound
c)
a homogeneous mixture
d)
a pure substance
19.
Why is the composition of every element fixed?
a)
Because it contains only one type of atom.
b)
Because the ratio of atoms is always the same.
c)
Because the atoms are so small.
d)
Because God said so.
20.

Which one of the following does not have an indicator for chemical change?

a)

Two clear liquids form precipitate after mixing

b)

The milk smells when you leave it out of the refrigerator

c)

Fireworks explode with different shapes and colors

d)

Prepare a cold Kool-Aid in a hot summer day.

21.

Are made from a combination of 2 or more elements in a constant ratio...

a)

Atome

b)

Mixture

c)

Compounds

d)

Elements

22.
A combination that can be separated by physical processes is a .....
a)
Atom
b)
Compound
c)
Element
d)
Mixture
23.
A mixture that is NOT evenly distributed is called ....
a)
Compounded
b)
Homogenous
c)
Heterogenous
d)
Salty
24.
Chicken soup is an example of what kind of substance?
a)
homogenous mixture
b)
solution
c)
heterogeneous mixture
d)
compound
25.
Aluminum
a)
Element
b)
Compound
c)
Homogeneous Mixture
d)
Heterogeneous Mixture
26.
Lucky Charms
a)
Element
b)
Compound
c)
Homogeneous Mixture
d)
Heterogeneous Mixture
27.
NaCl
a)
Element
b)
Compound
c)
Homogeneous Mixture
d)
Heterogeneous Mixture
28.
Which state of matter has molecules that move fastest and spread to fill the space they are in?  They do not form any pattern.
a)
solid 
b)
liquid 
c)
gas
29.

any characteristic of matter that you can observe without changing the identity of the substances that make it up

a)

physical property

b)

chemical property

c)

periodic table

d)

conglomerate

30.

a characteristic of matter you observe as it reacts or changes into a different substance

a)

physical property

b)

chemical property

c)

periodic table

d)

conglomerate

31.
Which of the following is not a chemical property? 
a)
rusting 
b)
boiling 
c)
rotting 
d)
burning 
32.
Which is an example of a physical property?
a)
ability to react with acid
b)
 state of matter
c)
flammability
d)
ability to react with oxygen
33.
Which of the following is a chemical change?
a)
human digestion
b)
cutting a tree down
c)
melting a chocolate bar
d)
Has a density of 1 gm/mL
34.
Which answer makes a correct statement?
a)
Physical change only changes the size.
b)
Physical change only changes the color.
c)
Physical changes begin and end with the same matter.
d)
Physical changes change the matter into something total different.
35.

A chemical change may involve

a)

Evolution of gas

b)

Change in temperature

c)

Change in colour

d)

All of the above

36.

Chemistry can be defined as the study of ...

a)

the environment and the solution to environmental problems

b)

motion, force, and energy

c)

the composition of matter and the changes it undergoes

d)

living organisms

37.

What is the SI unit for mass?

a)

kg

b)

mol

c)

g

d)

kelvin

38.

What is the SI unit for length?

a)

meter

b)

kg

c)

kelvin

d)

mol

39.

What is the SI unit for temperature?

a)

kelvin

b)

celsius

c)

fahrenheit

d)

joule

40.

How close a series of measurements are to each other is known as

a)

accuracy

b)

precision

c)

error

d)

significant figures

41.

Which is more precise for measuring time?

a)

a digital clock that measures to the tenth of a second

b)


a clock with minute and hour hands

c)

a digital stopwatch that measures to the hundreth of a second

42.

How many significant figures are in the measurement 0.00130 cm?

a)

5

b)

2

c)

3

d)

4

43.

How many significant figures are in the measurement 2.40 x 10-5 cm?

a)

5

b)

2

c)

3

d)

4

44.

How many significant figures are in the measurement 2200 cm?

a)

5

b)

2

c)

3

d)

4

45.

How many significant figures are in the measurement 45000. cm?

a)

5

b)

2

c)

3

d)

4

46.

How many significant figures are in the measurement 90.00 cm?

a)

5

b)

2

c)

3

d)

4

47.

What is the correct measurement?

a)

8

b)

8.0

c)

8.00

d)

8.000

48.

Written in scientific notation, the measurement 0.000 065 cm is...

a)

6.5 x 105 cm

b)

6.5 x 104 cm

c)

6.5 x 10-5 cm

d)

6.5 x 10-4 cm

49.

Written in scientific notation, the measurement 78 000 cm is...

a)

7.8 x 104 cm

b)

7.8 x 105 cm

c)

7.8 x 10-4 cm

d)

7.8 x 10-5 cm

50.

Determine the average mass of the following data set: 48.0 g, 53.0 g, 59.0 g, 62.0 g

a)

55.5 g

b)

55.75 g

c)

56.0 g

d)

56.25 g

51.

If a student determines the mass of a weight to be 45.0 g, and the weight is stamped "50.00 g", the student's percent error is...

a)

10.0%

b)

-10.0%

c)

11.1%

d)

-11.1%

52.

All of the following units could be used to measure volume EXCEPT

a)

liter

b)

cm3

c)

mL

d)

mol

53.

Which of the following units has been named for a person?

a)

mole (mol)

b)

kelvin (K)

c)

milliliter (mL)

d)

megameter (Mm)

54.

Express the answer using Sig Fig Rules:

45.01 x 4.54

(a)  

55.

Express the answer using Sig Fig Rules:

202.5 + 100.37 + 75

(a)  

56.

Express the answer using Sig Fig Rules:

21.5 mL x 5


Include units in your answer.

(a)  

57.

Express the answer using Sig Fig Rules:

89.4 + 78.56 + 80.784

(a)  

58.

Express the answer using Sig Fig Rules:

23.7 x 3.8

(a)  

59.

Express the answer using Sig Fig Rules:

45.76 x 0.25

(a)  

60.

Express the answer using Sig Fig Rules:

81.04 x 0.010

(a)  

61.

Express the answer using Sig Fig Rules:

32.567 + 135.0 + 1.4567

(a)  

62.

Express the answer using Sig Fig Rules:

43.678 x 64.1


Express your answer in scientific notation using the format of #.##E[insert exponent here]

(a)  

63.

Express the answer using Sig Fig Rules:

1.678 / 0.42

(a)  

64.

Express the answer using Sig Fig Rules:

246.24 + 238.278 + 98.3

(a)  

65.

Express the answer using Sig Fig Rules:

28.367 / 3.74

(a)  

66.

Express the answer using Sig Fig Rules:

658.0 + 23.5478 + 1345.29

(a)  

67.
There are __?__ significant digits in the number 0.00076
a)
2
b)
4
c)
5
d)
6
68.
There are __?__ significant digits in the number 90,000.00
a)
1
b)
2
c)
5
d)
7
69.
How many significant figures does the following number have: 0.002040
a)
6
b)
4
c)
3
d)
2
70.
Round "0.265" to two significant digits.
a)
0.3
b)
0.27
c)
0.25
d)
0.2
71.
There are __?__ significant digits in the number 2,000,000
a)
1
b)
2
c)
6
d)
7
72.
Why is the zero significant in the digit 706?
a)
It is an ending zero after the decimal point.
b)
It is a beginning zero.
c)
It is between 2 significant digits.
d)
It is not a significant digit.
73.
There are __?__ significant digits in the number 23.012.
a)
1
b)
2
c)
4
d)
5
74.
How many significant digits are there in "0.94"?
a)
1
b)
2
c)
3
d)
none
75.
How many significant digits are there in "8003"?
a)
1
b)
2
c)
3
d)
4
76.

How many significant digits are there in "8.20 x 104"?

a)

1

b)

2

c)

3

d)

4

77.
How many significant digits are there in "0.0805"?
a)
2
b)
3
c)
4
d)
5
78.
How many significant digits are there in "6605"?
a)
1
b)
2
c)
3
d)
4
79.

Subtract and round to the appropriate number of significant digits. 65.76−11.365.76-11.3  

a)

54.46

b)

54.4

c)

54.5

d)

54

80.
Which of the following is the answer for the problem with the correct number of significant digits?
23.91 x 12.861 = 307.50651
a)
308
b)
307.51
c)
307.5
d)
307
81.
Which of the following is the answer for the problem with the correct number of significant digits?
65 ÷ 10.01= 6.4935064
a)
7.0
b)
6.5
c)
6.494
d)
6.0
82.

Count the number of significant digits in the number 2.123 X 1012

a)

4

b)

3

c)

12

d)

16

83.

Significant digits contain all of the digits that are certain plus _____________ estimated digit(s).

a)

0

b)

1

c)

2

d)

3

84.

Significant digits are used in chemistry to show the _____________ of the measuring tool.

a)

units

b)

purpose

c)

precision

85.

What is the answer expressed with the correct significant digits for: 6.00 cm + 3.411 cm?

a)

9.41 cm

b)

9.411 cm

c)

9.4 cm

d)

9 cm

86.

What is the answer expressed with the correct significant digits for: 3.4 cm x 2.32 cm?

a)

7.888 cm2

b)

7.89 cm2

c)

7.9 cm2

d)

8 cm2

87.

What is the answer expressed with the correct significant digits for:

7.77 g÷2.3 cm37.77\ g\div2.3\ cm^3  

a)

3.37826 g/cm3

b)

3.38 g/cm3

c)

3.4 g/cm3

d)

3.378 g/cm3

88.

Convert 1 Degree Celsius to Kelvin:

a)

274.15 K

b)

- 283.15 K

c)

0 K

d)

373 K

89.

Convert a 136 Degrees Fahrenheit to Degrees Celsius:

a)

57.777 oC

b)

330 K

c)

57.5 oF

d)

220 C

90.

Convert 0 Kelvin to Degrees Celsius:

a)

- 273.15 oC

b)

- 273 K

c)

273.15 oC

d)

273 K

91.

Convert a - 194 Degrees Celsius to Degrees Fahrenheit:

a)

- 317.2 oF

b)

338.5 K

c)

- 273 oC

d)

0 oF

92.

Convert 253 Degrees Celsius to Kelvin:

a)

526.15 K

b)

625 K

c)

0 K

d)

186 K

93.

Convert 25.0 Degrees Celsius to Degrees Fahrenheit:

a)

77 oF

b)

77 oC

c)

100 oF

d)

100 oC

94.

Convert 186.5 Kelvins to Degrees Celsius:

a)

- 86.65 oC

b)

- 50 oC

c)

- 68.4 oC

d)

180 K

95.

Convert a - 317.2 Degrees Fahrenheit to Degrees Celsius:

a)

- 194 oC

b)

79 K

c)

230.9 oC

d)

- 48.2 oC

96.

Convert 150 Degrees Fahrenheit to Degrees Celsius:

a)

65.5556 oC

b)

65.5 oF

c)

338.5 oC

d)

338.5 oF

97.

Convert 212 Degrees Fahrenheit to Degrees Celsius:

a)

100 oC

b)

100 K

c)

100 oF

d)

50 oC

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