wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Chem (J/K) Final Exam

Total questions: 57

Worksheet time: 2hrs 58mins

Name
Class
Date
1.

LiBr is called (a)  

Choose from the below words
lithium bromine
lithium (I) bromine
lithium bromide
lithuim (I) bromide
2.

Which of these combinations is an ionic compound made of?

a)

Metal and Metal

b)

Nonmetal and Nonmetal

c)

Metal and Nonmetal

d)

Cation and Cation

3.
What is the name of N2O3
a)
Nitrogen trioxide
b)
Dinitrogen oxide
c)
Dinitrogen trioxide
d)
Nitrogen oxide
4.

When electrons are transfered from cations to anions a(an) ________ bond is formed

a)

polar covalent

b)

nonpolar covalent

c)

ionic

d)

metallic

5.

When electrons are shared a(an) ________ bond is formed

a)

ionic

b)

covalent

c)

metallic

6.

A(an) __________ bond exists between two nonmetals.

a)

ionic

b)

covalent

7.
What is a positivly charge atom called?
a)
cation
b)
anion
8.

What is a negatively charged atom called?

a)

Anion

b)

Cation

c)

Ion

9.

What type of reaction involves 2 substances combining to form 1 new compound?

a)

Decomposition Reaction

b)

Single Displacement Reaction

c)

Double Displacement Reaction

d)

Synthesis Reaction

10.

What are the reactants in the chemical equation pictured?

a)

CH4 and CO2

b)

CH4 and O2

c)

CO2 and H2O

d)

O2 and H2O

11.

What are the products of the chemical reaction pictured?

a)

CH4 and CO2

b)

CH4 and O2

c)

CO2 and H2O

d)

O2 and H2O

12.
What is the little number after an element in a chemical equation called.
Example: H2
a)
Coefficient 
b)
Subscript
c)
Atom
d)
Equation
13.
Balance this equation
_Zn+_HCl-->_ZnCl2 +_H2
a)
1,1,2,1
b)
1,1,1,2
c)
1,2,1,1
d)
2,1,1,1
14.
What does the Law of Conservation of Mass state?
a)
Matter cannot be gained or lost in a chemical reaction.
b)
Matter can only be lost in a chemical reaction.
c)
Matter can only be gained in a chemical reaction.
d)
Matter can be gained and lost in a chemical reaction. 
15.
KNO3 --> KNO2 + O2
What coefficients are needed to balance the reaction?
a)
2, 2, 1
b)
2, 3, 2
c)
1, 2, 2
d)
1, 3, 1
16.
Balance this equation-
__P4 + __O2 --> __P2O3
a)
it is already balanced
b)
2, 1, 3
c)
1, 2, 3
d)
1, 3, 2
17.
What is the molar mass of table salt (NaCl)?
a)
116.886 g/mol
b)
35.453 g/mol
c)
22.990 g/mol
d)
58.443 g/mol
18.
What is the molar mass of CO2?
a)
12
b)
16
c)
32
d)
44
19.
2Na + 2H2O → 2NaOH+ H2
How many grams of hydrogen are produced if 120 g of Na are available?
a)
5.2 g
b)
2.6 g
c)
690 g
d)
45 g
20.
B2H6 + 3O2 -->2 HBO2 + 2 H2O
 What mass of O2 will be needed to burn 36.1 g of B2H6?
a)
13.8 g O2
b)
3.86 mol of O2
c)
124 g O2
21.
The elements in the modern Periodic Table are arranged according to their
a)
a. atomic number
b)
b. oxidation number
c)
c. atomic mass
d)
d. nuclear mass
22.
What is represented by the dots in a Lewis electron-dot diagram of an atom of an element in Period 2 of the Periodic Table?
a)
a. the number of neutrons in the atom
b)
b. the number of protons in the atom
c)
c. the number of valence electrons in the atom
d)
d. the total number of electrons in the atom
23.
The atomic number of an atom is always equal to the total number of 
a)
a. neutrons in the nucleus
b)
b. protons in the nucleus
c)
c. neutrons plus protons in the atom
d)
d. protons plus electrons in the atom
24.
What is the mass number of an atom which contains 21 electrons, 21 protons, and 24 neutrons?
a)
a. 21
b)
b. 42
c)
c. 45
d)
d. 66
25.
What is the net charge of an ion that consists of 10 electrons, 11 protons, and 12 neutrons?
a)
a. 1+
b)
b. 2+
c)
c. 1-
d)
d. 2-
26.
Atoms of different isotopes of the same element differ in their total number of 
a)
a. electrons
b)
b. neutrons
c)
c. protons
d)
d. valence electrons
27.
Particles in an atom that are neutral and have no charge are 
a)
negatrons 
b)
electrons 
c)
neutrons 
d)
protons 
28.

The number of Sodium (Na) atoms in Na₂CO₃

a)

1

b)

2

c)

3

d)

6

29.
The splitting of a nucleus into smaller nuclei is
a)
fusion
b)
fission
c)
decay
d)
gamma radiation
30.

What is Avogadro's number?

a)

6.02 x 1023

b)

1 mole

c)

600 million

d)

6.02

31.
The red numbers in the image below represent ________
a)
subscripts
b)
coefficients
c)
I don't know, and don't want to try
d)
None of the answers are correct
32.
The blue numbers in the image below represent ________
a)
I don't know, and don't want to try
b)
coefficients
c)
subscripts
d)
none of the answers are correct
33.

What is the octet rule?

a)

Elements will have 8 valence in the outermost electron shell

b)

Elements will have 8 protons in the nucleus

c)

Elements will have 8 neutrons on average

d)

Elements must form an octopus like structure

34.

What is the difference between a chemical change and a physical change?

a)

chemical changes create new substances

b)

physical changes create new substances

c)

chemical changes break apart atoms

d)

physical changes break apart atoms

35.

The center of an atom where its neutrons and protons are is called the _____________.

a)

nucleus

b)

electron cloud

c)

center

36.

which of these shows a substance in a GAS state?

a)
b)
c)
d)
37.

Rusting metal is an example of a ____ change.

a)

chemical

b)

phase

c)

state

d)

physical

38.

Which of these actions cause a PHYSICAL change?

a)

rusting of metal pipes

b)

burning a log

c)

cooking an egg

d)

crushing an aluminum can

39.

Which subatomic particle has a positive charge?

a)

quark

b)

proton

c)

electron

d)

neutron

40.

What determines an element's identity?

a)

neutrons

b)

protons and neutrons

c)

protons

d)

electrons

41.

What are the 3 particles that make up an atom?

a)

positives, negatives, neutrons

b)

positron, electron, neutron

c)

proton, neutron, electron

d)

neutrons, ions, isotopes

42.

I am a metal

I am in group 2

I am in period 6

I am…

a)

Mo

b)

S

c)

Ba

d)

Re

43.

According to the octet rule, atoms form ions or bonds in ways that give them how many electrons?

a)

2

b)

4

c)

6

d)

8

44.

An unknown synthesized compound is made up of 61.24% oxygen and 38.76% chlorine. What is the empirical formula of the compound? Hint - gram (percentage ) to mole - mole -empirical formula

a)

Cl2O3

b)

Cl2O

c)

ClO4

d)

Cl2O7

45.

Which number is the atomic mass? 

a)

6

b)

12.011

46.
How many valence electrons does hydrogen have?
a)
1
b)
2
c)
3
d)
4
47.
Which problem is balanced?
a)
PbO2 + 2H2
b)
SO2 + H20 --> H2SO4
c)
2Na + 2H2O --> 2NaOH + H2
48.

How many moles are in 23 grams of lithium?

a)

1.1 mole

b)

2.2 mole

c)

3.3 mole

d)

4.4 mole

e)

Unable to determine

49.
What is the percent by mass of sodium in NaCl?
a)
39%
b)
61%
c)
35%
d)
65%
50.

Pizza dough is topped with sauce, cheese, pepperoni, sausage, mushrooms, bell peppers, and olives. What type of mixture is this pizza?

a)

suspension

b)

heterogeneous

c)

colloid

d)

homogeneous

51.

What two physical properties does matter always have?

a)

mass and volume

b)

width and heat energy

c)

transparency and boiling point

d)

length and color

52.

The picture shows a piece of paper being cut in half with scissors. Which of the following statements is true of this process?

a)

It is a chemical change because the paper particles were broken and rearranged.

b)

It is a chemical change because the substance was changed to something new.

c)

It is a physical change because the substance remained the same.

d)

It is a physical change because the paper only changed its state of matter.

53.

A neutral atom always contains an equal number of

a)

protons and neutrons.

b)

protons, electrons, and neutrons.

c)

electrons and neutrons.

d)

protons and electrons.

54.

What is the molecular geometry of this boron trifluoride (BF3)?

a)

linear

b)

bent

c)

trigonal planar

d)

tetrahedral

55.
What happens when the sodium atom loses an electron?
a)
It become negatively charged 
b)
It become positively charged
c)
none
56.
What happens when an atom loses an electron?
a)
Neutral (no charge)
b)
Positive charge
c)
Negative charge
57.
How many valence electrons in this structure?
a)
6
b)
5
c)
4
d)
7

Similar Resources on Wayground

PH2

56 questions

PH2

quiz

Worksheet

•

10th Grade

Valence Electrons, Bohr Models, and Lewis Dot Diagrams

60 questions

Valence Electrons, Bohr Models, and Lewis Dot Diagrams

quiz

Worksheet

•

7th - 9th Grade

Measurement and the Metric System

60 questions

Measurement and the Metric System

quiz

Worksheet

•

6th - 10th Grade

Fall Semester Review Part 1

60 questions

Fall Semester Review Part 1

quiz

Worksheet

•

10th Grade

Chemistry FLP-1

54 questions

Chemistry FLP-1

quiz

Worksheet

•

11th - 12th Grade

HC0205 Units

60 questions

HC0205 Units

quiz

Worksheet

•

10th - 11th Grade

Chemical Reactions Review

55 questions

Chemical Reactions Review

quiz

Worksheet

•

10th - 12th Grade

Classification of Matter

53 questions

Classification of Matter

quiz

Worksheet

•

8th - 10th Grade