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Chemistry Semester Final Review

Total questions: 66

Worksheet time: 36mins

Name
Class
Date
1.

___________ is anything that has matter and takes up space.

a)

volume

b)

mass

c)

density

d)

matter

2.

The theory that energy changes the speed of the molecules in matter is called

a)

Kinetic Molecular Theory

b)

Potential Molecular Theory

c)

Big Bang Theory

d)

Kinetic Atomic Theory

3.

Gas molecules have ____________ energy than molecules in a liquid.

a)

more

b)

less

4.

If all particles in a substance stop moving it is called

a)

absolute zero

b)

frozen

c)

melted

d)

below zero degrees celcius

5.

Solids

a)

take the shape of their container.

b)

hold their shape no matter what container they are in.

c)

neither of these

6.

What happens to the molecules of a compound when it changes state from solid to liquid?

a)

They gain kinetic energy and begin to move faster.

b)

They gain potential energy and begin to move slower.

c)

They gain kinetic energy and begin to move slower.

d)

They gain kinetic energy and they go through a chemical change.

7.

What is the atomic symbol of Nitrogen

a)

Ni

b)

N

c)

Na

d)

NI

8.

What is the element represented by He?

a)

Hydrogen

b)

Helium

c)

laughing gas

9.

What is need to change the state of matter?

a)

energy

b)

heat

c)

cold

d)

a heat pump

10.

Which of these isn't a mechanical mixture?

a)

pizza

b)

salad

c)

cereal

d)

milk

11.

Which of these is not a solution?

a)

apple juice

b)

lemonade

c)

fruit salad

d)

milk

12.

An observation made with your senses

a)

Qualitative observation

b)

Quantitative observation

c)

temperature

d)

conclusion

13.

What is a control?

a)

a variable that is unchanged to compare results to

b)

a changed variable

c)

a hypothesis

d)

a conclusion

14.

Which of the following is an example of quantitative data?

a)

grey

b)

oily

c)

44.2oC

d)

Copper

15.

A substance made of only one type of atom that cannot be broken down by chemical means

a)

compound

b)

element

c)

electron

d)

molecule

16.

Which of the following is NOT a physical characteristic?

a)

Viscosity

b)

Volume

c)

Flammability

d)

Density

17.

What property is calculated by dividing the mass of an object by its volume?

a)

Buoyancy

b)

Density

c)

Volume

d)

Energy

18.

Texture is a

a)

Chemical property

b)

Physical property

19.

How a substance reacts with acid is a

a)

Chemical property

b)

Physical property

20.

What do principal energy levels describe?

a)

the different areas an electron can be located

b)

the number of electrons in an atom

c)

the average distance of an electron from the nucleus

d)

the orientation of the electrons in space

21.

Which principal energy level listed has the highest energy?

a)

n=1

b)

n=2

c)

n=3

d)

n=4

22.

What do sublevels describe?

a)

the different areas an electron can be located

b)

the number of electrons in an atom

c)

the average distance of an electron from the nucleus

d)

the orientation of the electrons in space

23.

Which of the following is NOT a sublevel?

a)

s

b)

p

c)

d

d)

b

24.

Which of the following sublevels does NOT exist?

a)

2d

b)

1s

c)

6f

d)

5s

25.

How many sublevels are found in the 3rd energy level?

a)

1

b)

2

c)

3

d)

4

26.

What do atomic orbitals describe?

a)

the different areas an electron can be located

b)

the number of electrons in an atom

c)

the average distance of an electron from the nucleus

d)

the orientation of the electrons in space

27.

How many electrons can an orbital hold?

a)

1

b)

2

c)

3

d)

4

28.

What orbital is this an image of?

a)

s

b)

p

c)

d

d)

f

29.

How many atomic orbitals are there in the d sublevel?

a)

1

b)

3

c)

5

d)

7

30.

How many electrons can a p sublevel hold?

a)

3

b)

6

c)

5

d)

10

31.

How many orbitals are in the 5s sublevel?

a)

1

b)

3

c)

5

d)

7

32.

How many orbitals are in the 2nd energy level?

a)

1

b)

3

c)

4

d)

6

33.

How many electrons are there in the 4th and 5th energy level?

a)

2 each

b)

8 each

c)

18 each

d)

32 each

34.

If an electron enters the 3rd energy level and the s sublevel is completely full with electrons, which sublevel will the electron go to stay in?

a)

s

b)

p

c)

d

d)

f

35.

Cations have what charge?

a)

+

b)

-

36.

Anions are what charge?

a)

+

b)

-

37.

Noble gases are...

a)

Happy and stable because they have full valence electrons

b)

Happy BUT UNSTABLE because they are gases

c)

Not happy because they don't want to be noble

d)

Not happy but stable because they are group number 18

38.

Valence electrons means..

a)

Electrons inside the atoms

b)

Electrons on the outer most energy level

c)

Electrons with no charge

d)

Electrons that are stable

39.

Element Chlorine [Cl] at group #17 have how many valence electrons?

a)

6

b)

7

c)

17

d)

5

40.

Anions will

a)

lose electrons

b)

gain electrons

41.

Cations will

a)

Lose electrons

b)

Gain electrons

42.

Isotopes behave chemically the same as other same elements

a)

True

b)

False

43.

This isotope have how many neutrons?

a)

26

b)

12

c)

14

d)

16

44.

Which of the Chlorine [Cl] is heavier?

a)

Cl-37

b)

Cl-35

45.

For Cl 37, what does the 37 represent?

a)

Number of Protons

b)

Number of Neutrons

c)

Number of Electrons

d)

Atomic Mass Number

46.

Which element is located at period 4 group 6? [click the picture to zoom in]

a)

Cr

b)

Sg

c)

Hf

d)

Ta

47.

Protons are...

a)

Positive charge

b)

Negative charge

c)

Neutral/No charge

48.

Electrons are...

a)

Positive charge

b)

Negative charge

c)

Neutral/No charge

49.

Neutrons are...

a)

Positive charge

b)

Negative charge

c)

Neutral/No charge

50.

Which particles are NOT inside the nucleus of atoms?

a)

Protons

b)

Electrons

c)

Neutrons

51.
This bullseye demonstrates...
a)
High Accuracy & High Precision
b)
High Accuracy & Low Precision
c)
Low Accuracy & High Precision
d)
Low Accuracy & Low Precision
52.
?
a)
High Accuracy & High Precision
b)
High Accuracy & Low Precision
c)
Low Accuracy & High Precision
d)
Low Accuracy & Low Precision
53.
This image is an example of...
a)
precision ONLY
b)
accuracy ONLY
c)
BOTH precision and accuracy
d)
NEITHER precision and accuracy 
54.
Describe the accuracy and precision of the image
a)
Accurate and Precise
b)
Accurate and not precise
c)
Not Accurate and Precise
d)
not accurate and not precise
55.

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

a)

Accuracy

b)

Precision

c)

Significant

d)

Estimate

56.
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
57.
A set of data are all close to each other, and they are close to the actual value.  This set of data can be described as...
a)
accurate
b)
precise
c)
both precise and accurate
58.

Measurements: 24.9, 25.2, 25.1, 24.8

True Value: 25.0

These measurements are…

a)

Accurate, but not precise

b)

Precise, but not accurate

c)

Both precise and accurate

d)

Neither precise nor accurate

59.

Measurements: 2.5, 14.5, 10.1, 45.3

True Value: 25.0

These measurements are…

a)

Accurate, but not precise

b)

Precise, but not accurate

c)

Both precise and accurate

d)

Neither precise nor accurate

60.

What is the length?

a)

7

b)

7.7

c)

7.70

d)

7.700

61.

What is the volume?

a)

50

b)

45

c)

45.0

d)

40.5

62.

WHAT IS THE VOLUME?

a)

36

b)

36.5

c)

37.0

d)

36.0

63.

WHAT IS THE LENGTH?

a)

11.45

b)

11.4

c)

11

d)

11.450

64.

WHAT IS THE VOLUME?

a)

20.15

b)

20.1

c)

21.5

d)

21.50

65.

WHAT IS THE LENGTH?

a)

29

b)

29.2

c)

29.20

d)

30

66.
The deer population is estimated to be 17,600 in northern Illinois, but an actual count was 21,300. What is the percent error?
a)
21%
b)
17.37%
c)
17.4%
d)
21.02%

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