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Unit 1 & 2 Review

Total questions: 105

Worksheet time: 1hrs 13mins

Name
Class
Date
1.

Determine the Percentage Error in the problem. 1. Experimental=1.24 g 2. Accepted Value= 1.30 g

|Accepted Value - Experimental Value| _____________________________________ X 100% = Accepted Value

a)

4.6%

b)

4.62%

c)

4.61%

d)

4%

2.

Determine the answer in the correct # of significant figures. 9m X 9m=

a)

81 m^2

b)

80 m^2

c)

80.0 m^2

d)

80 m

3.

Determine the number of significant figures. 0.02

a)

1

b)

2

c)

0

d)

3

4.

Determine the number of Significant figures. 501

a)

3

b)

2

c)

1

d)

0

5.

Determine the number of significant figures. 5,000

a)

1

b)

4

c)

3

d)

0

6.

Determine the number of correct significant figures. 5000.

a)

2

b)

4

c)

3

d)

1

7.

Determine the number of correct significant figures. 0.1020

a)

1

b)

2

c)

4

d)

5

8.

Determine the correct number of significant figures. 1035m ÷ 42m = m2

a)

24.0 m^2

b)

20 m^2

c)

25 m^2

d)

24.5 m^2

9.

Determine the correct number of significant figures.

12.01 ml + 35.2 ml =

a)

47.2 ml

b)

47.21 ml

c)

47.3 ml

d)

47 ml

10.

Determine the % error. 1. Experimental=22.2 L 2. Accepted Value= 22.4 L

|Accepted Value - Experimental Value| _____________________________________ X 100% = Accepted Value

a)

0.893%

b)

0.90%

c)

0.9%

d)

0.8%

11.

Convert each measurement.

2. 25cm = (a)   mm

12.

Convert the measurement. 35ml = (a)   dL

13.

Convert each measurement 3. 4500mg = (a)   g

14.

Convert each number to scientific notation. 1. 0.0025 =_____________

a)
2.5 x 10^-3
b)

.0025 x 10 ^3

c)

2.5 X 10^3

d)

2.0 X 10^2

15.

Convert to scientific notation. 2. 500=____________

a)
5.0 x 10^2
b)

0.5 x 10^-3

c)

5.0 X 10 ^-2

d)

50.0 X 10 ^2

16.

Convert scientific notation to decimal. 1.5 X 10 ^3

(a)  

17.

Convert scientific notation to decimal 1 x 10^-1

(a)  

18.

What is the volume of the liquid in this graduated cylinder

a)

24ml

b)

23.1ml

c)

25 ml

d)

24.1 ml

19.

You have a liquid with a volume of 4ml and has a mass of 3.5 grams. What is the Density? (D=M/V)

***round to correct number of significant figures***

a)

0.9 g

b)

9 g/ml

c)

0.9 g/ml

d)

0.875 g/ml

20.

A platinum bar measures 5.0 cm long, 4.0 cm wide, and 1.5 cm thick ( L X W X H). It has a mass of 700.0 grams. What is the Density? (D=M/V)

***Make sure to use correct number of significant figures based on the problem***

a)

23

b)

23.3 g/ cm^3

c)

23 g/cm^3

d)

23.30 g/cm^3

21.
How many significant figures does the following number have: 0.002040
a)
4
b)
3
22.

How many significant figures does the following number have?1.2500 x 10310^3  

a)
5
b)
3
c)

Ambiguous: 3 or 5

d)

7

23.

Which of the following numbers does NOT have three significant figures?

a)

0.0370

b)

370

c)

3.70 x 105

d)

37.0

e)

0.0307

24.
How many Significant Figures in the number below?
4.56 x 103
a)
5
b)
4
c)
6
d)
3
25.

If you multiply 2.501 by 3.2, how many significant figures should the answer have?

a)

2

b)

3

c)

4

d)

5

26.

How many significant figures?

1000

a)

1

b)

2

c)

3

d)

4

27.
It is possible to get the exact measurement of an object.
a)
True
b)
False
28.
Round 1009 to three sig figs
a)
100
b)
101
c)
1010
d)
1000
29.
How would you write the number 487 with 2 sig figs?
a)
400
b)
500
c)
490
d)
485
30.

The number 0.002040 has _____ significant figures.

a)

2

b)

3

c)

4

d)

6

31.

You calculate that 213,000 m/s is the answer to a problem. How many significant digits does this number have?

a)

6

b)

3

c)

It’s not possible to know how many significant figures are in an answer without knowing its accepted value.

d)

It's not possible to know how many significant figures are in an answer without knowing its percent error.

32.
Calculate 5.50 cm + 5.5 cm and give your answer with the correct number of significant figures.
a)
11 cm
b)
11.0 cm
c)
11.00 cm
d)
11.000 cm
33.

Calculate and give the answer using the correct number of significant figures: 1.2 + 3 + 9.65 + 10.881

a)

24.731

b)

24.73

c)

24.7

d)

25

34.

Calculate and give the answer using the correct number of significant figures: 1.02 + 8.2 + 3.33 + 9.781

a)

22.3

b)

22.33

c)

22.331

d)

22.332

35.

Mark all that apply.

Describe the accuracy and precision of the image

a)

Good accuracy

b)

poor accuracy

c)

good precision

d)

poor precision

36.
A set of data are all close to each other, but they are not close to the actual value.  This set of data can be described as...
a)
accurate
b)
precise
c)
both precise and accurate
37.

How close a measurement is to the accepted value is called..

a)

Accuracy

b)

Precision

c)

Significant

d)

Estimate

38.
The ability to hit the desired target is called
a)
Accuracy
b)
Precision
39.

How close a measurement is to the true value is called..

a)

Accuracy

b)

Precision

c)

Significant

d)

Estimate

40.

It is a measure of how closely measurements align with each other when they are made in the same way.

a)

Accuracy

b)

Precision

c)

Error

d)

Extrapolation

41.

State of matter that takes the shape of it's container and has a definite volume.

a)

Solid state

b)

Liquid state

c)

Gas state

d)

Plasma state

42.

State of matter that can fill containers with no fixed shape or volume.

a)

Solid state

b)

Liquid state

c)

Gas state

d)

Plasma state

43.

State of matter in which materials have a definite shape and volume.

a)

Solid state

b)

Liquid state

c)

Gas state

d)

Plasma state

44.

What change of state is taking place in this photograph?

a)

Condensation

b)

Freezing

c)

Vaporization

d)

Melting

45.

What change of state is taking place in this photograph?

a)

Condensation

b)

Freezing

c)

Vaporization

d)

Melting

46.

Which of the following is a property of gases?

a)

They have a definite volume.

b)

They are not compressible.

c)

They have no definite shape.

d)

They have no ability to flow.

47.

The diagram shows the way the particles of a solid occupy space. Select the property of a solid that is consistent with this micro-view.

a)

No define shape

b)

Cannot be compressed

c)

No definite volume

48.

When a beaker of water is heated its volume increases a little. What is happening to the particles in the liquid?

a)

They are getting bigger.

b)

They are moving slower.

c)

They are moving faster.

d)

They are getting smaller.

49.

Which state of matter is represented in the following diagram?

a)

Liquid

b)

Liquid and gas

c)

Gas

d)

Solid

50.

Which state of matter does this picture represent?

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

51.

What state of matter does this picture represent?

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

52.

Which is true about gases?

a)

Gas particles have the lowest kinetic energy

b)

Gas particles have a fixed volume

c)

Gases take the shape of their container.

d)

Gases have a high density.

53.

What is NOT true about solids.

a)

Solids have a fixed volume

b)

Solids have a fixed shape

c)

Solids have the lowest kinetic energy

d)

Solid particles can move past each other

54.

Heating a gas causes the particles to...

a)

Go faster

b)

Go slower

c)

Remain at the same speed

d)

Condense into a liquid

55.
Is water melting a physical or chemical change?
a)
Physical
b)
Chemical
56.
Is salt dissolving in water a physical or chemical change?
a)
Physical
b)
Chemical
57.
Is digesting your food a physical or chemical change?
a)
Physical
b)
Chemical
58.
Is sour milk a physical or chemical change?
a)
Physical
b)
Chemical
59.
Is steam a physical or chemical change?
a)
Physical
b)
Chemical
60.
Are hard boiled eggs a physical or chemical change?
a)
Physical
b)
Chemical
61.
Is adding sugar to your coffee a physical or chemical change?
a)
Physical
b)
Chemical
62.
When baking soda and vinegar mix it creates a bubbly mess. Is this a chemical or physical change?
a)
Physical
b)
Chemical
63.
If a new substance is formed would this be a physical or chemical change?
a)
Physical
b)
Chemical
64.
Which of the following is NOT an example of chemical change?
a)
sour milk
b)
burning wood
c)
breaking a pencil
d)
rust
65.
Which of the following is NOT an example of a physical change?
a)
crumpled paper
b)
pencil sharpening
c)
shrunken clothing
d)
sour milk
66.
Ripping up paper ...
a)
Chemical Change
b)
Physical Change
67.
Change in size ...
a)
Chemical Change
b)
Physical Change
68.
A change in phase ...
a)
Chemical Change
b)
Physical Change
69.
To go back to the substances original states is not possible or you would need to use chemicals. 
a)
Chemical
b)
Physical
70.
Causes a change in temperature ...
a)
Chemical Reaction
b)
Physical Reaction
71.
Causes a change in odor ...
a)
Chemical Reaction 
b)
Physical Reaction
72.
Evidence of Chemical Change.
a)
New Substance 
b)
Size change
c)
State change
d)
Mixture 
73.
Evidence of a physical change.
a)
New substance
b)
Shape Change
c)
Light produced
d)
Gas released.
74.
Freezing Juice?
a)
Physical Change
b)
Chemical Change
75.
Change in density is a physical change.
a)
True
b)
False
76.
Fizzing, foaming, and burning are all examples of
a)
Chemical change
b)
Physical change
77.

[check all that apply] Pure substances include:

a)

Elements

b)

Homogeneous Mixtures

c)

Compounds

d)

Heterogeneous Mixtures

78.

An element is?

a)

Chemically combined

b)

Pure substances that can be broken down

c)

Pure substances that cannot be broken down into simpler substances

d)

One or more elements chemically combined.

79.

The properties of a compound are different from the elements that make them up.

a)

True

b)

False

80.

Oxygen is a

a)

Element

b)

Compound

81.

Water (H2O) is a

a)

Element

b)

Compound

82.

[check all that apply] Mixtures are

a)

chemically combined

b)

composed of two or more types of matter that can be present in varying amounts

c)

One or more elements chemically combined

d)

can be separated by physical changes

83.

Salt (NaCl) is

a)

Mixture

b)

Compound

84.

Saltwater is

a)

Mixture

b)

Compound

85.

Chicken noodle soup is

a)

Homogeneous mixture

b)

Heterogeneous mixture

86.

A bottle of dishwashing detergent contains a clear, viscous liquid. The label has a long list of ingredients, including water, sodium lauryl sulfate, fragrance, and Blue dye #5.

What can you infer about the material in the bottle from this label and the appearance of the liquid?

a)

It is a pure substance.

b)

It is a compound.

c)

It is a heterogeneous mixture.

d)

It is a homogeneous mixture.

87.

Which of the following would be considered a Homogeneous mixture?

a)

Sweet Tea

b)

Vegetable soup

c)

Caesar salad

d)

Mud

88.

What is matter?

a)

Anything that has mass and takes up space

b)

Velocity divided by time

c)

The amount of space an object takes up

d)

The weight of an object

89.

Which of the following are examples of PURE SUBSTANCES?


Select all that apply!

a)

Sea Water

b)

Oxygen Gas

c)

Pure Gold

d)

Air

e)

C6H12O6

90.

Which of the following are examples of ELEMENTS?


Select all that apply!

a)

H2O

b)

O2

c)

Au

d)

Fe

e)

Trail Mix

91.

Which of the following are examples of COMPOUNDS?


Select all that apply!

a)

H2O

b)

O2

c)

Blood

d)

Fe

e)

C6H12O6

92.

Which of the following are examples of HOMOGENEOUS MIXTURES?


Select all that apply!

a)

Tacos

b)

Air

c)

Steel

d)

Chicken Noodle Soup

e)

Fruit Punch

93.

Which of the following are examples of HETEROGENEOUS MIXTURES?


Select all that apply!

a)

H2O

b)

Air

c)

Pizza

d)

Chicken Noodle Soup

e)

Dirt

94.

Which of the following are examples of PHYSICAL PROPERTIES?


Select all that apply!

a)

Flammability

b)

pH

c)

Color

d)

Mass

e)

Melting Point

95.

Which of the following are examples of CHEMICAL PROPERTIES?


Select all that apply!

a)

Flammability

b)

pH

c)

Reacts with Chlorine

d)

Flexibility

e)

Melting Point

96.

Where would you look to check if a substance is an Element?

a)

The Periodic Table of Elements

b)

A calculator

c)

The graffiti on the bathroom walls

d)

The center of a Tootsie Pop

97.

What is mass?

a)

The amount of material in an object

b)

The force of gravity on an object

c)

The compactness of an object

d)

The amount of space an object takes up

98.

What is weight?

a)

The amount of material in an object

b)

The force of gravity on an object

c)

The compactness of an object

d)

The amount of space an object takes up

99.
Burning is always a chemical reaction.
a)
True
b)
false
100.

What is the best classification for this substance?

a)

An element

b)

A compound

c)

A mixture

101.

Match the project to the appropriate field of chemistry:


Do research on making a new medicine to treat high blood pressure

a)

Organic Chemistry

b)

Inorganic Chemistry

c)

Biochemistry

d)

Analytical Chemistry

e)

Physical Chemistry

102.

Match the project to the appropriate field of chemistry:


Used to see how much carbon is in a substance

a)

Organic Chemistry

b)

Inorganic Chemistry

c)

Biochemistry

d)

Analytical Chemistry

e)

Physical Chemistry

103.

Match the project to the appropriate field of chemistry:


Improve the method for extracting iron from iron ore

a)

Organic Chemistry

b)

Inorganic Chemistry

c)

Biochemistry

d)

Analytical Chemistry

e)

Physical Chemistry

104.

Match the project to the appropriate field of chemistry:


Investigate ways to regulate the rate of gasoline burning in an automobile engine

a)

Organic Chemistry

b)

Inorganic Chemistry

c)

Biochemistry

d)

Analytical Chemistry

e)

Physical Chemistry

105.

Match the project to the appropriate field of chemistry:


Determine the composition of a moon rock sample. And used in forensic science.

a)

Organic Chemistry

b)

Inorganic Chemistry

c)

Biochemistry

d)

Analytical Chemistry

e)

Physical Chemistry

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