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Chemistry Final Review

Total questions: 120

Worksheet time: 2hrs 0mins

Name
Class
Date
1.

The following footwear is best in the laboratory:

a)

Flats/boat shoes

b)

Flip-flops

c)

Sneakers

d)

Sandals

2.

When heating a test tube with a Bunsen Burner, the open end of the test tube should be:

a)

Sealed with a rubber stopper

b)

Pointed towards your chest

c)

Pointed away from your face

d)

Over flowing with liquid

3.

Which of the following is unsafe?

a)

Wearing goggles at all times

b)

Placing a beaker on near the edge of a lab table

c)

Wafting a chemical's smell toward your nose

d)

Carrying a microscope with two hands

4.

When should you look over the experiment instructions?

a)

After starting the lab

b)

After your lab partner has gathered the materials

c)

Before starting the lab

d)

Instructions can be read at any time

5.

What does this symbol mean?

a)

Burn

b)

Corrosive Chemical

c)

Gloves

d)

Spill

6.

What does this symbol mean?

a)

Biohazard

b)

Goggles

c)

Toxic

d)

Hot

7.

What does this symbol mean?

a)

Flammable

b)

Caution

c)

Heat Hazard

d)

Biohazard

8.
A type of laboratory flask which features a flat bottom, a conical body, and a cylindrical neck
a)
Volumetric flask
b)
Florence flask 
c)
Erlenmeyer flask 
d)
Büchner flask
9.

A metal pole with a solid base, used to hold or clamp glassware and other equipment in place

a)

Pole clamp

b)

Metal spatula

c)

Ring stand

d)

Iron clamp stand

10.

A small, cup-shaped container capable of sustaining high temperatures

a)

Erlenmeyer flask

b)

Crucible

c)

Ceramic jar

d)

Evaporating Dish

11.

It's attached to a gas line and lit to provide heat for your experiments

a)

Sparker

b)

Benson Burner

c)

Nichrome wire

d)

Bunsen Burner

12.

Used for obtaining the masses of solid and liquid samples

a)

Spectrometer

b)

Condenser

c)

Balance

d)

Thermometer

13.

It's commonly used to measure the volume of a liquid

a)

Condenser

b)

Beaker

c)

Pipette bulb

d)

Graduated cylinder

14.

They're used together to prepare substances by crushing and grinding them into a fine powder

a)

Mortar and pestle

b)

A beaker and flask

c)

Ceramic bowl and ladle

d)

Crucible and spoon

15.

Used with a ring stand to hold glassware, such as a beaker or a funnel

a)

0-ring

b)

Crucible tongs

c)

Iron Ring

d)

Wax ring

16.

This is used to light your bunsen burner

a)

Striker

b)

Winger

c)

Flame Maker

d)

Bunsen Burner

17.

One kilogram is how many GRAMS?

a)

1000

b)

100

c)

10

d)

0.001

18.

64 cm = ____ mm

a)

6,400

b)

0.64

c)

640

d)

6.4

19.

What is the measuring SI unit for mass?

a)
centimeter 
b)
millimeter 
c)
grams 
d)
pounds
20.

The formula for Density is:

a)

(Mass x Volume)

b)

(Volume ÷\div  Mass)

c)

(Mass ÷\div  Volume)

d)

(Mass - Volume)

21.
What is the difference between weight and mass?
a)
Weight depends on gravity and mass is constant
b)
Weight depends on density and mass depends on gravity
c)
Weight depends on gravity and mass depends on volume
d)
Mass depends on gravity and weight is constant
22.

How many significant figures are in 127.500?

(a)  

23.

How many significant figures are in 9700?

(a)  

24.

How many significant figures are in 0.08300?

(a)  

25.

Give the answer to the correct number of significant figures to

3.419 + 3.912 + 7.0518 + 0.00013

a)

14.383

b)

14.382

c)

14.3829

d)

14.38293

26.

Give the answer to the correct number of significant figures to

109.3758 ÷ 7.813

(a)  

27.

What is 6.457 rounded to two significant figures?

a)

6.5

b)

6.4

c)

6.46

d)

6.0

e)

6.45

28.

Round 509.96 to 4 significant figures

a)

509.9

b)

509.0

c)

510.0

d)

510

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:  0.000497

a)

49.7  x  10-5

b)

4.97  x  10-5

c)

4.97  x  10-4

d)

49.7  x  10-6

31.

Convert the number back to standard form:  6.79  x  104

a)
679,000
b)
6,790
c)
67,900
d)
6,790,000
32.
How would you write -5.6 x 10-3 in standard form?
a)
0.0056
b)
-5,600
c)
0.00056
d)
-0.0056
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.

How many significant figures does this number have: 3.20 x 108

a)

6

b)

5

c)

2

d)

3

35.
A series of steps designed to help scientists solve problems and answer questions is called
a)
hypothesis
b)
observation
c)
inquiry
d)
scientific method
36.

Alchemy can be described as the:

a)

Foundation of chemistry

b)

Foundation of biology

c)

Precursor to physics

d)

Precursor to astronomy

37.

What are the two types of Pure Substances in chemistry?

a)

Solutions

b)

Mixtures

c)

Elements

d)

Suspensions

e)

Compounds

38.

Anything that has mass and takes up space is called:

a)

Atom

b)

Matter

c)

Proton

d)

Element

39.

The smallest building block of all matter in the universe is a(n):

a)

Atom

b)

Cell

c)

Proton

d)

Element

40.

Matter is defined as:

a)

composed of energy

b)

having mass and volume

c)

travels at light speed

d)

anything that has constant weight

41.

What term refers to "two or more substances combined physically, but are still able to be separated?"

a)

Mixture

b)

Solution

c)

Matter

d)

Combination

42.

Which of the following is NOT an example of matter?

a)

Sunlight

b)

Air

c)

Tree trunk

d)

Sponge

43.

Grams and kilograms measure...

a)

capacity

b)

length

c)

time

d)

mass

44.

What type of substance does this picture represent?

a)

Compound

b)

Mixture of elements and compounds

c)

Mixture of elements

d)

Mixture of compounds

45.

What type of substance does this picture represent?

a)

Element

b)

Compound

c)

Mixture of elements

d)

Mixture of compounds

46.

 What is a pure substance made of two or more elements that are chemically combined called?

a)

element

b)

compound     

c)

mixture

d)

solution

47.
A substance that contains only one type of atom is a(n)
a)
compound
b)
element
c)
heterogeneous mixture
d)
homogeneous mixture
48.
Which of the following is an example of a heterogenous mixture?
a)

Milk

b)

Pasta salad

c)

cup of coffee

d)

water

49.

Which of the following is a type of Homogeneous mixture?

a)

Trail mix

b)

Sand

c)

Oil & water

d)

Orange Juice

50.

Any characteristic of matter that you can observe without changing the identity of the substance is called a:

a)

physical property

b)

chemical property

c)

exothermic property

d)

conglomeration

51.

This picture represents which type of change?

a)

Physical Change

b)

Chemical Change

52.

Which event always involves a chemical change?

a)

boiling

b)

melting

c)

conducting

d)

burning

53.

Which of these are intensive properties of matter?

a)

Mass

b)

Volume

c)

Density

d)

Boiling Point

e)

Size

54.

Which of these are extensive properties of matter?

a)

Mass

b)

Volume

c)

Density

d)

Freezing Point

e)

Size

55.

Will an object with a density of 0.87g/mL sink or float in water?

a)

sink

b)

float

56.
Which box has a higher density?  
a)
Box A
b)
Box B
c)
cannot be determined
d)
they are the same
57.

Silver has a Density of 10.5g/mL. You measure the mass of your silver piece to be 5.8g. What is the Volume of this silver piece?

a)

60.9 mL

b)

0.97 mL

c)

0.55 mL

d)

4.7 mL

58.

A SOLUTION is what type of substance?

a)

Heterogeneous mixture

b)

Compound

c)

Homogenous mixture

d)

Plasma

59.

A state of matter in which high temperatures cause atoms to lose most of their electrons is called:

a)

solid

b)

liquid

c)

gas

d)

plasma

60.

Plasma can be found in which of the following?

a)

Fire

b)

Lightning

c)

LED light bulbs

d)

Stars

e)

Moons

61.
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
62.

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

a)

0.9 cm

b)

80 mm

c)

0.75 cm

d)

8 mm

63.

What mass does this object have?

a)

151.7

b)

152.7

c)

51.7

d)

151.5

64.
What is the volume of the liquid in this graduated cylinder?
a)

25 mL 

b)

36.5 mL 

c)

24.3 mL 

d)

19 mL

65.

Which of the following choices best represents the volume reading from the graduated cylinder pictured?

a)

61 mL

b)

61.5 mL

c)

62 mL

d)

60.5 mL

66.

The particle of an atom without a charge that contributes 1 amu to the atomic mass.

a)

Atoms

b)

Protons

c)

Neutrons

d)

Electrons

e)

Nucleus

67.

The negatively charged particle of an atom.

a)

Atoms

b)

Protons

c)

Neutrons

d)

Electrons

e)

Nucleus

68.

The positively charged particle of an atom.

a)

Atoms

b)

Protons

c)

Neutrons

d)

Electrons

e)

Nucleus

69.

How many neutrons does Boron have?

a)

7

b)

5

c)

10

d)

6

70.
What are the 3 particles that make-up the atom?
a)
protons, neutrons, and isotopes
b)
neutrons, isotopes, and electrons
c)
positives, negatives, and electrons
d)
protons, neutrons, and electrons
71.
Where are electrons of an atom found?
a)

Inside the center Nucleus

b)

Within the Electron Cloud space

c)

Some are in the nucleus and some in the electron cloud.

d)

Rotating in specific orbitals around the nucleus

72.
What particle uniquely identifies an element?
a)
Number of Valence Electrons
b)
Number of Protons
c)
Number of Electrons
d)
Atomic Mass
73.
If an atom has 10 protons, 10 neutrons, and 10 electrons, what is the mass of the atom?
a)

10

b)

20

c)

30

d)

40

74.

If the mass number of this chlorine atom is 36, how many neutrons does it have?

a)

17

b)

18

c)

19

d)

can't be determined

75.
What is the atomic number?
a)
the number of protons
b)
the number of protons and neutrons
c)
the number of neutrons
d)
the number of protons and electrons
76.

Who discovered electrons?

a)

Aristotle

b)

John Dalton

c)

J.J. Thomson

d)

Democritus

77.

Who was Ernest Rutherford?

a)

English Science teacher who developed the first Atomic Theory

b)

English physicist and chemist who discovered an electron

c)

German physicist who discovered protons using cathode tubes

d)

New Zealand physicist who discovered the positively charged nucleus in an atom

78.

Choose one of the conclusions that Ernest Rutherford made based on the experimental results of his Gold-Foil experiment

a)

He concluded that the atom is indivisible

b)

He concluded that the atom is mostly empty space

c)

He concluded that the atom has neutrons

d)

He concluded that the atom is tightly packed with subatomic particles all mixed together

79.
What scientist is best known for his "Plum Pudding" model of the atom?
a)

J.J. Thomson

b)

Ernest Rutherford

c)

John Dalton

d)

Democritus

80.

Who was the first person to write and publish a theory that said all matter was composed of tiny bits called "atoms"?

a)

John Dalton

b)

J. J. Thompson

c)

Isaac Newton

d)

Albert Einstein

81.

This scientist definitively proved the existence of atoms by using mathematical calculations and the movement of pollen grains:

a)

Democritis

b)

Dalton

c)

Moseley

d)

Einstein

82.

What does "amu" stand for?

a)

atomic mass uhers

b)

atomic mass units

c)

atomic messenger units

d)

accelerated mass units

83.
James Chadwick discovered the ________.
a)
proton
b)
neutron
c)
electron
d)
nucleus
84.

Isotopes of an element have a different number of:

a)

Protons

b)

Neutrons

c)

Electrons

d)

Mass

85.
What do these isotopes of carbon all have in common?
a)

neutron number and mass number

b)

atomic number and neutron amount

c)

atomic number and electron number

d)

protons, atomic number, and mass number

86.
What is the mass number of this atom?
a)
1
b)
3
c)
4
d)
7
87.

Which isotope has 76 protons and 114 neutrons?

a)

Osmium-114

b)

Osmium-76

c)

Osmium-190

d)

Osmium-190.23

88.

Isotopes are atoms of the same element with different #’s of __________ & therefore, different __________.

a)

neutrons ; atomic numbers

b)

protons ; atomic numbers

c)

electrons ; mass numbers

d)

neutrons ; mass numbers

89.

Which of these places radiation types in order from the most penetrating to least penetrating:

a)

Alpha , Beta, Gamma

b)

Beta , Gamma , Alpha

c)

Gamma, Beta, Alpha

d)

Gamma, Alpha, Beta

90.

A nuclear reaction where an atomic nucleus splits into two smaller nuclei is called:

a)

Fission

b)

Fusion

c)

Gamma decay

d)

Beta decay

91.
Two or more nuclei combine to form one larger nucleus in the process of nuclear _____.
a)
Fusion
b)
Fission
c)
Tracing
d)
Decay
92.

The nuclear process occurring at a nuclear power plant is:

a)

Nuclear fusion

b)

Nuclear fission

c)

Combustion

d)

Nuclear fishing

93.

This type of decay releases high-energy photons emitted by a radioisotope:

a)

positron decay

b)

alpha decay

c)

gamma decay

d)

beta decay

94.

What is a huge advantage of nuclear energy?

a)

Large amounts of radioactive waste

b)

No CO2 air pollution

c)

It uses renewable Uranium fuel

d)

It is the safest way to make energy

95.

Which of the following is considered to be the worst nuclear disaster in history?

a)

Fukushima

b)

Three Mile Island

c)

Chernobyl

d)

Hiroshima

96.

The was the site of the worst nuclear accident in the United States:

a)

Chernobyl

b)

Three Mile Island

c)

Fukushima

d)

Cuyahoga

97.

Which is a common isotope used in radioactive dating of organic matter?

a)

Carbon-14

b)

Uranium-235

c)

Carbon-12

d)

Iodine-43

98.

Isotopes that are "unstable" are considered to be:

a)

Charged

b)

Radioactive

c)

Extensive

d)

Proactive

99.

The isotopes of the atoms having an atomic number of _____ or higher are all Radioactive.

a)

62

b)

50

c)

80

d)

84

100.

What is the proper scientific name for radiation that can effect other atoms and damage cells?

a)

ionizing radiation

b)

toxic radiation

c)

non ionizing radiation

d)

radioisorade

101.

Which of the following types of radiation are Ionizing?

a)

Infrared

b)

Radio waves

c)

Microwaves

d)

Ultraviolet

e)

X-Rays

102.
Which group of the periodic table is composed of inert (not reactive)  gases?
a)
alkali metals
b)
alkaline earth metals
c)
halogens
d)
noble gases
103.
What's a valence electron?
a)
electrons in the second energy level
b)
electrons in the outermost energy level
c)
the atomic number
d)
electrons in the first level
104.
What element is this?
a)
Helium
b)
Hydrogen
c)
Argon
d)
Silver
105.

The "groups" of the periodic table indicate the:

a)

Number of electron shells

b)

Number or electrons

c)

Number of protons

d)

Number of valence electrons

106.

A "row" on the Periodic Table of Elements is called a(n):

a)

family

b)

period

c)

group

d)

isotope

107.

Which of the following atoms will have a larger radius than Zinc?

a)

Gallium

b)

Aluminum

c)

Magnesium

d)

Strontium

108.
As you move down a group, atomic radius increases because - 
a)
you add more and more neutrons
b)
you add more and more protons
c)
you add more and more shells (energy levels)
d)
you add more atomic mass
109.

What is the name of group number 1?

a)

halogens

b)

noble gases

c)

alkali metals

d)

alkaline earth metals

110.

The Halogens are which group number on the periodic table?

a)

18 (8A)

b)

1

c)

2

d)

17 (7A)

111.

Which element is found in group 2, period 6?

a)

Oxygen (O)

b)

Barium (Ba)

c)

Selenium (Se)

d)

Carbon (C)

112.

Henry Moseley arranged what we now know as the "modern periodic table". How did he arrange it?

a)

By increasing atomic mass

b)

By increasing atomic number

c)

By decreasing valence electrons

d)

By increasing number of isotopes

113.

The yellow elements (right side) are called 

a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
114.

A substance that has luster, is malleable, and is a good conductor would be classified as a:

a)

nonmetal

b)

metalloid

c)

metal

d)

semiconductor

115.

A substance that is dull, brittle, and a nonconductor would be classified as a

a)

metal

b)

nonnmetal

c)

metalloid

d)

semiconductor

116.

A shiny and slightly malleable substance that is not always a good conductor of electricity would be a:

a)

metal

b)

nonmetal

c)

metalloid

d)

lanthanide

117.

Which elements are located on the "stair-step" line of the periodic table?

a)

metals

b)

nonmetals

c)

metalloids

d)

noble gases

118.

This scientist:

- Demonstrated a connection between atomic mass and element's properties

- Arranged the elements in order of increasing atomic mass

- Predicted the existence and properties of undiscovered elements

a)

John Newlands

b)

David Meyer

c)

Dmitri Mendeleev

d)

Henry Moseley

119.

Which of the following elements are "Diatomic?"

a)

Hydrogen

b)

Boron

c)

Sulfur

d)

Carbon

e)

Iodine

120.

Which of the following elements would be the MOST reactive?

a)

Radon

b)

Carbon

c)

Silver

d)

Potassium

e)

Helium

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