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Chem Semester 1 Final Exam Review

Total questions: 70

Worksheet time: 1hrs 1mins

Name
Class
Date
1.

Look at this image. Which object has the LOWEST density? Why?

a)

The Ping Pong Ball because it floats at the top

b)

The bolt because it has sunk to the bottom

c)

The soda cap because it is not just full of air like the Ping Pong ball

2.
Jack has a rock. The rock has a mass of 14g and a volume of 2cm3. What is the density of the rock?
a)
7 mL
b)
7 g/cm3
c)
28 g/cm3
d)
1/7 g/cm3
3.

What units are used to measure mass?

a)

g

b)

m

c)

L

d)

˚C

e)

g/mL

4.

What is the term for the amount of matter or stuff in a substance?

a)

mass

b)

volume

c)

density

d)

temperature

5.

What is the term for the amount of space a substance takes up?

a)

mass

b)

volume

c)

density

d)

temperature

6.

The amount of mass per unit volume, or how tightly packed atoms are in a given area, is called...

a)

mass

b)

volume

c)

density

d)

length

7.
What is the volume of the liquid in this graduated cylinder?
a)
8.5 mL 
b)
7.5 mL 
c)
8 mL 
d)
.1 mL
8.
What is the volume of the water in this graduated cylinder?
a)
7.6 mL
b)
7.2 mL
c)
6.6 mL
d)
6.8 mL
9.

What is the temperature on the thermometer?

a)

18° Celsius

b)

28° Celsius

c)

20° Fahrenheit

d)

20° Celsius

10.

What temperature does the thermometer show?

a)

39° C

b)

35° C

c)

32° C

d)

31° C

11.

Convert 100˚C to Kelvin

K = ˚C + 273

a)

373 K373\ K  

b)

273 K273\ K  

c)

212 K212\ K  

d)

0 K0\ K  

12.

Convert 300 K to ˚C

˚C = K – 273

a)

573oC573^oC  

b)

37oC37^oC  

c)

27oC27^oC  

d)

600oC600^oC  

13.

762 cL = _____ L

a)

7.62

b)

0.762

c)

76.2

d)

7,620

14.

15 m = _____ mm

a)

15,000

b)

1,500

c)

0.015

d)

150

15.

The length of the leaf is:

a)

3.9 cm

b)

4.0 cm

c)

3.5 cm

d)

3.3 cm

16.

Which of the following choices best represents the length reading from the metric ruler pictured?

a)

87 mm

b)

87.4 mm

c)

87.2 mm

d)

84.7 mm

17.

What is the average of the set of data?

3.2, 4.4, 3.7

a)

3.8

b)

11.3

c)

8.8

d)

3.2

18.

Which of these numbers does NOT round to 0.50 to 2 decimal places (hundredths place)?

a)

0.491

b)

0.4956

c)

0.5012

d)

0.503

19.

Put the liquids in order from LEAST dense to MOST dense?

a)

4, 3, 2, 1

b)

1, 2, 3, 4

c)

3, 4, 2, 1,

d)

4, 3, 1, 2

20.
Which subatomic particles are found in the nucleus of an atom?
a)
Protons and Electrons
b)
Protons and Neutrons
c)
Neutrons and Electrons
d)
Protons, Neutrons and Electrons
21.

What charge does a proton have?

a)

+1

b)

0

c)

-1

22.

The total number of protons and neutrons in an atom is called the...

a)

Atomic number

b)

Proton number

c)

Mass number

d)

Weight number

23.

How many electrons does a NEUTRAL Sodium (Na) atom have?

a)

23

b)

11

c)

12

d)

34

24.

How many protons does an Aluminum (Al) atom have?

a)

27

b)

14

c)

40

d)

13

25.

The _________ of an element equals the number of protons in an atom of that element.

a)

mass number

b)

atomic weight

c)

atomic number

d)

isotopes

26.

What atom has 9 protons, 9 electrons, and 10 neutrons?

a)

Beryllium-9

b)

Oxygen-19

c)

Fluorine-19

d)

Fluorine-9

27.

Which subatomic particle is negatively charged (-1)?

a)

proton

b)

atom

c)

neutron

d)

electron

28.

What is the correct number of subatomic particles for a NEUTRAL Phosphorous (P) atom with a mass number of 31?

a)

p = 15, n = 15, e = 15

b)

p = 15, n = 16, e = 15

c)

p = 15, n = 15, e = 16

d)

p = 16, n = 15, e = 15

29.

Subatomic particles that are neutral in charge (charge = 0)

a)
Neutrons
b)
Protons
c)
Nucleus 
d)
Electrons
30.

Where are electrons likely to be found as they travel around the nucleus?

a)

Nucleus

b)

Electron Cloud/orbitals

c)

Within a Proton

d)

Within a Neutron

31.

What is an isotope?

a)

Charged atoms

b)

Atoms of the same element with different amounts of neutrons

c)

Atoms of the same element with different amounts of protons

d)

Neutral atoms

32.

Different isotopes always have...

a)

different mass numbers

b)

different atomic numbers

c)

different electrons

d)

different protons

33.

How many protons, neutrons, and electrons are in 59Ni+2?

a)

p = 59, n = 59, e = 61

b)

p = 26, n = 31, e = 30

c)

p = 28, n = 31, e = 26

d)

p = 28, n = 59, e = 31

34.

Most atoms are trying to reach a full valence shell (octet) with ____ valence electrons.

a)

4

b)

6

c)

8

d)

32

35.

Which isotope of iron is the most abundant or most common in nature?

a)

iron-54

b)

iron-56

c)

iron-57

d)

iron-58

36.

How many valence electrons does Nitrogen Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

37.

What ionic charge does Sulfur form when it becomes an ion?

a)

+2

b)

-2

c)

+1

d)

0

38.

What ionic charge does Potassium form when it becomes an ion?

a)

-3

b)

-1

c)

+1

d)

+3

39.

How many valence electrons does Aluminum Have?

a)

1 Valence electron

b)

2 Valence electron

c)

3 Valence electron

d)

4 Valence electron

e)

5 Valence electron

40.
What is a homogeneous mixture?
a)

a mixture that looks the same throughout the sample

b)

a substance that is made up of one type of atom

c)

a substance that is made up of one type of compound

d)

a mixture that does NOT look the same throughout the sample

41.

A mixture that is NOT evenly distributed (has 2 or more phases) is called ....

a)
Compounded
b)
Homogenous
c)
Heterogenous
d)
Salty
42.
Italian Salad Dressing is a . . .
a)
heterogeneous mixture
b)
homogeneous mixture
c)
Pure Substance
d)
Compound
43.

Kool-Aid is a ...

a)
Element
b)
Compound
c)
Homogeneous Mixture
d)
Heterogeneous Mixture
44.

Aluminum metal is a ...

a)
Element
b)
Compound
c)
Homogeneous Mixture
d)
Heterogeneous Mixture
45.

Table salt (NaCl) is a ...

a)
Element
b)
Compound
c)
Homogeneous Mixture
d)
Heterogeneous Mixture
46.
A pure substance...
a)
is an element or a compound
b)
is an element or a mixture
c)
is a compound or a mixture
d)
is a mixture
47.

Matter is defined as anything that has ...

a)

mass

b)

volume

c)

mass and volume

d)

everything

48.
In physical changes, substances might change in __________ but not in __________.
a)
appearance, composition
b)
volume, state of matter
c)
texture, color
d)
weight, mass
49.
Which of the following is an example of a physical change?
a)
sugar and oxygen reacting to produce water and carbon dioxide
b)
honey dissolving in tea
c)
a raw egg being cooked
d)
metal rusting after being left out in the rain
50.

Which of the following physical changes shows a change in a substance's STATE OF MATTER?

a)
a piece of paper being torn in half
b)
clay being molded into a bowl
c)
an ice cube being crushed
d)
liquid water becoming steam
51.
Which of the following is a sign that a chemical reaction has occurred?
a)
change in shape
b)
melting
c)

formation of a gas/fizzing

d)

dissolving in water

52.
Which of the following is NOT an example of a physical change?
a)
crumpled paper
b)
pencil sharpening
c)
shrunken clothing
d)
sour milk
53.

Which process is an example of a physical change?

a)

Burning

b)

Rusting

c)

Flattening

d)

Decomposing

54.

Which process is an example of a physical change?

a)

Cutting Carrots into pieces and mixed in a salad

b)

A peanut butter and jelly sandwich being digested

c)

Sodium metal and water combining to form a compound and a gas

d)

Sodium metal and chlorine gas combined to form table salt

55.

What is the phase change of a Solid to a Liquid?

a)

freezing

b)

melting

c)

evaporating/boiling/vaporizing

d)

condensation

56.

Change from a Solid directly into a Gas?

a)
Sublimation
b)
Condensation
c)

Melting

d)

Deposition

57.

Change from a Gas directly into a Solid is called........

a)
Sublimation
b)
Deposition
c)

Freezing

d)

Condensation

58.

Change from Gas to Liquid...

a)
condensation
b)

evaporation/boiling/vaporization

c)

freezing

d)

deposition

59.

Change from Liquid to Solid is called ...

a)

boiling

b)

freezing

c)

sublimation

d)

evaporation/boiling/vaporization

60.

Change from Liquid to Gas is called....

a)

melting

b)

evaporation/boiling/vaporization

c)

condensation

d)

sublimation

61.

Elements that share similar physical and chemical properties are most likely located in the same...

a)

period

b)

group

62.
Silicon is a 
a)
Metal
b)
Nonmetal
c)
Metalloid
63.

The horizonal rows on the Periodic Table are called...

a)

groups

b)

period

64.

Which elements are to the RIGHT of the staircase (red)?

a)

nonmetals

b)

metals

c)

metalloids

65.

Which elements are to the LEFT of the staircase (yellow)?

a)

metals

b)

nonmetals

c)

metalloids

66.

Where are the metalloids found on the Periodic Table?

a)

to the left of the stairstep

b)

along/on the stairstep

c)

to the right of the stairstep

67.

Periodic law states that the elements are arranged according to their atomic ________ so that elements with similar chemical properties are in the same ________ and properties repeat periodically.

a)

numbers, period

b)

masses, period

c)

masses, group

d)

numbers, group

68.

Which group typically forms a +1 ionic charge?

a)

Group 1A

b)

Group 2A

c)

Group 7A

d)

Group 4A

69.

Which group typically forms a +3 ionic charge?

a)

Group 3A

b)

Group 2A

c)

Group 7A

d)

Group 6A

70.

Which group typically forms a -2 ionic charge?

a)

Group 3A

b)

Group 2A

c)

Group 7A

d)

Group 6A

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