Wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

2025 CP Chem Final Practice Quizziz

Total questions: 87

Worksheet time: 4hrs 42mins

Name
Class
Date
1.

Which atomic theorist developed the plum pudding model?

a)

John Dalton

b)

JJ Thomson

c)

Ernest Rutherford

d)

Niels Bohr

2.

Which atomic theorist performed the gold foil experiment?

a)

James Chadwick

b)

Erwin Schrodinger

c)

JJ Thomson

d)

Ernest Rutherford

3.

Which atomic theorist believed that the atom was structured like the solar system?

a)

John Dalton

b)

James Chadwick

c)

Ernest Rutherford

d)

Niels Bohr

4.

Which of these has a negative charge?

a)

Proton

b)

Neutron

c)

Electron

d)

Oatmeal

5.

Where are electrons found?

a)

Outside the nucleus

b)

Under my bed

c)

Inside the nucleus

d)

Inside a proton

6.

Which charge does a proton have?

a)

Neutral

b)

Negative

c)

No charge- battery is dead

d)

Positive

7.

Neutrons have a ____________ charge.

a)

Neutral, or no charge

b)

Positive

c)

Negative

d)

Neutron? I don't know what that is!

8.

This particle determines which element it is.

a)

Protons

b)

Neutrons

c)

Electrons

d)

Mrs. Wagner

9.

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 atoms

10.

What is the mass number defined as?

a)

the number of protons

b)

the number of protons and neutrons

c)

the number of neutrons

d)

the number of protons and electrons

11.

What is the name of group number 1?

a)

halogens

b)

noble gases

c)

alkali metals

d)

alkaline earth metals

12.

What is the name of group number 2?

a)

transition metals

b)

halogens

c)

metaloids

d)

alkaline earth metals

13.

where are the metaloids found

a)

far left, vertical

b)

stair step/diagonal

c)

far right horizontal

d)

at the bottom

14.

What group number are the halogens found?

a)

18 (8A)

b)

1

c)

2

d)

17 (7A)

15.

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, rows

b)

masses, rows

c)

masses, column

d)

numbers, column

16.

A grouping of elements based on similar chemical properties, arranged by columns in the periodic table; also known as a group

a)

family

b)

period

c)

row

d)

isotope

17.

A row on the Periodic Table of Elements

a)

family

b)

period

c)

row

d)

isotope

18.

Metals (select all that apply)

a)

are found on the right side of the periodic table.

b)

are found on the left side of the periodic table.

c)

are good conductors of heat and electricity.

d)

are brittle.

e)

are malleable and ductile.

19.

Which element is found in group 2, period 6?

a)

Oxygen (O)

b)

Barium (Ba)

c)

Selenium (Se)

d)

Carbon (C)

20.

Alkali metals have ___ valence electron(s).

a)

one

b)

two

c)

seven

d)

eight

21.

Isotopes of an element have a different number of...

a)

Protons

b)

Neutrons

c)

Electrons

d)

Mass

22.

Potassium-39 has how many neutrons?

a)

19

b)

18

c)

20

d)

21

23.

Nickel-59 has how many neutrons?

a)

30

b)

31

c)

32

d)

33

24.

Bromine-80 has how many neutrons?

a)

41

b)

42

c)

44

d)

45

25.

76 protons and 114 neutrons

a)

Osmium-114

b)

Osmium-76

c)

Osmium-190

d)

Osmium-190.23

26.

12 protons and 13 neutrons

a)

Mg-12

b)

Mg-13

c)

Mg-25

d)

Mg-24.305

27.

Calculate the average atomic mass of silver.

a)

106.38649amu

b)

111.91896amu

c)

107.8677amu

d)

121

28.

An element has two naturally occurring isotopes. One is 10.013 amu and is 19.9% abundant. The other is 11.01 amu and is 80.1% abundant. What is the average atomic mass? What element is it?

a)

9.012, Beryllium

b)

12.011, Carbon

c)

6.941, Lithium

d)

10.812, Boron

29.

An isotope has three forms.  30% have a mass of 4 amu, 20% have a mass of 5 amu and 50% have a mass of 3 amu.  Average atomic mass will be closest to

a)

2 amu

b)

3 amu

c)

4 amu

d)

5 amu

30.

This is a symbol for what type of particle?

a)

alpha particle

b)

beta particle

c)

gamma ray

d)

positron

31.

Solve this equation for beta decay.
6027Co = ___ + 0-1e

a)

5625Mn

b)

6028Ni

c)

5823V

d)

5927Co

32.

What is the missing isotope that will balance the following nuclear equation?
94Be  +  11H →  _____  +  42He

a)

105B

b)

105Ne

c)

63Li

d)

63C

33.

How many valence electrons are in an atom of Se?

a)

2

b)

8

c)

6

d)

5

34.

How many valence electrons are in an atom of Ar?

a)

2

b)

8

c)

4

d)

1

35.

How many valence electrons are in an atom of K?

a)

3

b)

8

c)

4

d)

1

36.

What is a cation?

a)

a molecule or atom with a positive charge

b)

a molecule or atom with a negative charge

c)

a molecule or atom that has gained electrons

d)

a molecule or atom that has gained neutrons

37.

What is the common charge of:

Mg

a)

1+

b)

2+

c)

1-

d)

2-

38.

What is the common charge of:

K

a)

1+

b)

2+

c)

1-

d)

2-

39.

What is the common charge of:

O

a)

1+

b)

2+

c)

1-

d)

2-

40.

What is the common charge of:

S

a)

1+

b)

2+

c)

1-

d)

2-

41.

What is the common charge of:

Cl

a)

1+

b)

2+

c)

1-

d)

2-

42.

What is the common charge of:

Br

a)

1+

b)

2+

c)

1-

d)

2-

43.

Ionic bonds are formed between...

a)

Non - metals

b)

A metal and a non-metal

c)

Metals

44.

Which of the below is an ionic compounds?

a)

Ni

b)

MgCl2

c)

H2O

d)

CH4

45.

How is an ionic bond formed?

a)

Sharing of electrons

b)

Delocalised electrons

c)

Transfer of electrons

46.

In the chemical formula for an ionic compound, which item is written first?

a)

positive ion

b)

negative ion

c)

subscript

d)

the female

47.

What properties does an ionic compound have?

a)

A low boiling point and it conducts electricity when dissolved in water

b)

A high melting point and it conducts electricity when molten or dissolved

c)

A high boiling point and it conducts electricity when solid

48.

The name of FeCl₂ is

a)

iron chloride

b)

iron (II) chloride

c)

iron (I) chloride

d)

iron dichloride

49.

LiBr is called

a)

lithium bromine

b)

lithium (I) bromine

c)

lithium bromide

d)

lithuim (I) bromide

50.

Name the following ionic compound: BeCl2

a)

beryllium chlorine

b)

beryllium II chloride

c)

beryllium chloride

d)

beryllium dichloride

51.

What is the name of the compound Na2(SO4)?

a)

Sodium sulfate

b)

Sodium sulfide

c)

Sodium sulfite

d)

Sodium sulfuroxide

52.

What is the name of the compound Sc(OH)3?

a)

Scandium (III) hydroxide

b)

Scandium (I) hydroxide

c)

Scandium (II) hydroxide

d)

Scandium hydroxide

53.
Explain the difference between an atom and a molecule.
a)
One molecule is made of one atom.
b)
One molecule is always made of different particles.
c)
One molecule is made of more than one atom.
d)
One molecule is made of more than two atoms.
54.
Elements are made of 
a)
many types of atoms 
b)
the periodic table
c)
one type of atom 
d)
molecules 
55.
Which of these items is made up of one or more molecules?
a)
Gold
b)
Hydrogen
c)
Salt 
d)
Neon 
56.
How many moles are in 4.5x1024 particles?
a)
0.747 particles
b)
0.747 mol
c)
2.71x1047 mol
d)
2.71x1047 particles
57.
What is the molar mass of Mg3N2?
a)
191.6 g/mol
b)
76.64 g/mol
c)
38.32 g/mol
d)
100.95 g/mol
58.
How many moles of carbon atoms are there in 5g of carbon?
a)
60 mol
b)
17 mol
c)
0.42 mol
d)
7 mol
59.
How many molecules are present in 69.0 moles of SrO?
a)
4.16x1025molecules
b)
8.72x1021molecules
c)
7,149.78 molecules
d)
6,893.32 molecules
60.
What is the molar mass of Mg3N2?
a)
191.6 g/mol
b)
76.64 g/mol
c)
38.32 g/mol
d)
100.95 g/mol
61.
What is the percent by mass of magnesium in MgO?
a)
20%
b)
40%
c)
50%
d)
60%
62.
What is the percent composition by mass of sulfur in the compound MgSO4 (gram formula mass = 120 g/mol)?
a)
20%
b)
27%
c)
46%
d)
53%
63.
What is the percent composition by mass of oxygen in the compound MgSO4 (gram formula mass = 120 g/mol)?
a)
20%
b)
27%
c)
46%
d)
53%
64.
Find the percent composition of Cu2S?
a)
%Cu= 67.987 %S= 32.013
b)
%Cu= 79.854   %S= 20.145
c)
%Cu= 35.946   %S= 64.054
65.
How many particles (atoms) would be in 8.4 moles of Octane (C8H18)?
a)
5.77 x 1023
b)
5.04 x 1024
c)
5.77 x 1026
d)
5.04 x 1023
66.

_Fe (s) + _S (l) → _FeS (s)


In the experiment above, 7.62 g of Fe are allowed to react with 8.67 g of S.

How much FeS is formed?

a)

14.8 g

b)

12.2 g

c)

13.7 g

d)

19.9 g

67.
Which would have more atoms?
a)
1 mole of Li
b)
1 mole of Au
c)
1 mole of Si
d)
None, all are equal
68.
You are given the following percentages: 40.05% S and 59.95% O. Find the empirical formula for these elements
a)
SO
b)
SO2
c)
SO3
d)
SO4
69.

In the equation 2 Al2O3 --> 4 Al + 3 O2, what is the mole ratio of aluminum to oxygen?

a)

10:6

b)

3:4

c)

4:3

d)

2:3

70.
What can be determined from a balanced chemical equation?
a)
Mole ratio of any two substances in the reaction
b)
Energy released in the reaction.
c)
Electron configuration of all elements in the reaction. 
d)
Mechanism involved in the reaction. 
71.

N2 + 3H2 → 2NH3

What is the mole ratio between Nitrogen and Ammonia in the above reaction?

a)

1 moles NH3 / 2 moles N2

b)

2 moles NH3 / 1 moles N2

c)

2 moles N2 / 3 moles NH3

d)

1 moles N2 / 3 moles NH3

72.
2NaClO3 (s) → 2NaCl (s) + 3O2 (g)  
12.00 moles of NaClO3 will produce how many grams of O2?
a)
256 g of O2
b)
576 g of O2
c)
288 g O2
73.
Cl2 + 2KBr → Br2 + 2KCl
How many grams of potassium chloride (KCl) can be produced from 356 g of potassium bromide (KBr)?
a)
749 g
b)
223 g
c)
479 g
d)
814 g
74.
Fe2O3 + 3H2 → 2Fe + 3H2O
About how many grams of H2O will be produced from 150 grams of Fe2O3? 
a)
50 grams H2O
b)
60 grams H2O
c)
5000 grams H2O
d)
6000 grams H2O
75.
How do I move from grams to moles
a)
multiply by molar mass
b)
divide by molar mass
c)
multiply by Avo number
d)
divided by Avo number
76.
2 KClO3 → 2 KCl + 3 O2
How many moles of oxygen are produced when 6.7 moles of KClO3 decompose completely?
a)
6.7 mol
b)
1.0 mol
c)
10.1 mol
d)
4.5 mol
77.

What is the empirical formula of a substance with the molecular formula C2H4?

a)

C2H2

b)

C2H2

c)

C1H1

d)

CH2

78.

What is the empirical formula of a substance with the molecular formula NaCl?

a)

Na2Cl

b)

NaCl2

c)

NaCl

d)

Na2Cl2

79.

What is the empirical formula of a substance with the molecular formula X20Y15?

a)

X10Y15

b)

X5Y3

c)

X4Y3

d)

X20Y15

80.

What is the empirical formula of a substance with the molecular formula Se8F12?

a)

Se8F12

b)

Se2F3

c)

Se4F3

d)

SeF

81.
A formula with the lowest whole # ratio of elements in a compound is called
a)
Molecular Formula
b)
Chemical Formula
c)
Empirical Formula 
d)
Distance Formula
82.
Glycerol has a molar mass of 92.09g/mol. Its percent composition is: 39.12% C, 8.75% H, and 51.12% O. What is the molecular formula for glycerol?
a)
C2H3O2
b)
CH2O
c)
C2H4O2
d)
C3H8O3
83.
A compound consists of 72.2% magnesium(Mg) and 27.8% nitrogen(N) by mass. What is the empirical formula?
a)
Mg4N3
b)
MgN2
c)
Mg3N2 
d)
MgN
84.
Which pair has the same empirical formula?
a)
NaCrO4 and Na2Cr2O7
b)
C2H4O2 and C6H12O6
c)
C3H6O3 and C2H6O2
d)
CH4 and C2H6
85.

How many molecules are in 2.5 mol of NaCl?

a)

1.5 x 1024 molecules

b)

1.5 molecules

c)

4.15 molecules

d)

1.5 x 1023 molecules

86.
You are given the following percentages: 40.05% S and 59.95% O. Find the empirical formula for these elements.
a)
SO
b)
SO2
c)
SO3
d)
SO4
87.
A compound consists of 72.2% magnesium(Mg) and 27.8% nitrogen(N) by mass. What is the empirical formula?
a)
Mg4N3
b)
MgN2
c)
Mg3N2 
d)
MgN

Similar Resources on Wayground

Common Element Names and Symbols

82 questions

Common Element Names and Symbols

quiz

Worksheet

•

9th - 12th Grade

S24 Final Review

90 questions

S24 Final Review

quiz

Worksheet

•

9th - 12th Grade

Chemistry A Review for Trimester Exam

83 questions

Chemistry A Review for Trimester Exam

quiz

Worksheet

•

10th Grade

Physical Science Final Test Review

87 questions

Physical Science Final Test Review

quiz

Worksheet

•

10th Grade

Unit 4 - 6 Test Review

86 questions

Unit 4 - 6 Test Review

quiz

Worksheet

•

10th Grade

Midterm Review 2020

85 questions

Midterm Review 2020

quiz

Worksheet

•

10th Grade

Bonding Test

90 questions

Bonding Test

quiz

Worksheet

•

9th - 12th Grade

Bonding and Nomenclature

90 questions

Bonding and Nomenclature

quiz

Worksheet

•

9th - 12th Grade