wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

Unit 13 Review Game

Total questions: 26

Worksheet time: 26mins

Name
Class
Date
1.

What is the oxidation number of S8?

a)

0

b)

8

c)

6

d)

16

2.

In NCl3, Nitrogen has and oxidation Number of

a)

3-

b)

3+

c)

1-

d)

1+

3.

In CO2, oxygen has an oxidation number of what?

a)

-2

b)

+2

c)

-1

d)

+1

4.

In LiH, hydrogen has an oxidation number of

a)

-1

b)

+1

c)

-2

d)

+2

5.

Ca2+ has an oxidation number of

a)

+2

b)

-2

c)

+1

d)

-1

6.

Oxidation is the _________ of electrons.

a)

loss

b)

gain

c)

sharing

d)

transfer

7.

Reduction is the ___________ of electrons.

a)

loss

b)

gain

c)

sharing

d)

transfer

8.
Which statement is true:
Mg → Mg2+ + 2e–
a)
Mg gains 2 electrons
b)
Mg2+ loses 2 electrons
c)
Mg loses 1 electron
d)
Mg loses 2 electrons
9.
Which of the following half reactions correctly represents a reduction half reaction?
a)
Fe →Fe2+ + 2e-
b)
Pb4+ + 2e- →Pb2+
c)
2O-2 →O2 + 4e-
d)
Fe + 3e- →Fe3+
10.
In the reaction
2Ca(s) + O2(g) --> 2CaO(s), calcium is __________
a)
Reduced
b)
Synthesized
c)
Oxidized
d)
None of the above
11.
     In the reaction Zn + H2O --> ZnO2 + H2
 which element, if any, is oxidized? 
a)
Zinc
b)
Hydrogen
c)
Oxygen
d)
None
12.
What substance is oxidized in the following reaction?
4Fe + 3O2 --> 2Fe2O3
a)
Iron
b)
Fluorine
c)
Oxygen
13.
Le Chaltelier's Principle states that if a chemical system at equilibrium is stressed,
a)
the system will adjust to increase the stress
b)
the system will adjust to reduce the stress
c)
the system will not adjust
14.
When writing an endothermic reaction, heat energy is stated as
a)
product
b)
catalyst
c)
reactant
15.
For the reaction...
SO2(g) + O2(g) <−>  SO3(g)
If the concentration of SO2(g)  is increased, the equilibrium of the reaction will ___________.
a)
shift to the left
b)
shift to the right
c)
not shift
16.
For the reaction...
SO2(g) + O2(g) <−>  SO3(g)
If the equilibrium shifts to the right, the concentration of O2(g) will ___________.
a)
increase
b)
decrease
c)
remain the same
17.
For the reaction...
energy +  N2(g)  +  O2(g)  <−>  2NO(g)
If  O2(g) is removed, the  concentration of N2 will _______.
a)
increase
b)
decrease
c)
remain the same
d)
double
18.
A +  B <--> C + D   ΔH= 151kJ
Rewrite the above equation with energy as a reactant or product:
a)
A +  B <--> C + D + energy
b)
A +  B + energy <--> C + D 
19.
For the reaction...
heat  +  N2(g)  +  O2(g)  <−>  2NO(g)
If the heat is removed to the chemical system, the equilibrium will _______.
a)
shift to the left
b)
shift to the right
c)
not shift
20.

A single sided arrow (→), indicates that a reaction is:

a)

Reversible

b)

Irreversible

c)

Not reactive

21.

When the forward and reverse reactions are occurring at the same rate, the reaction is said to be at:

a)

Chemical equilibrium

b)

Chemical reaction

c)

Chemical constant

d)

Chemical peace

22.
What would happen to the position of the equilibrium when Oxygen is added to the system?
 2SO3(g) ⇋ 2SO2(g) + O2(g) 
a)
SO3 will increase 
b)
SO3 will decrease 
c)
SO2 will increase
d)
none of the above
23.

Which is the correct equilibrium constant expression for the following reaction?

Fe2O3(s) + H2(g) —> Fe(s) + H2O(g)

a)

K = [H2O]3 / [H2]3

b)

K = [Fe2O3] [H2]3 / [Fe]2[H2O]3

c)

K = [Fe]2[H2O]3 / [Fe2O3] [H2]3

d)

K= [Fe] [H2O] / [Fe2O3] [H2]

e)

K = [H2] / [H2O]

24.

The equilibrium constant expression for the reaction BrF5(g) —> Br2(g) + F2(g) is


a)

Kc = [Br2] [F2] / [BrF5]

b)

Kc = [BrF5]2 / [Br2][F2]5

c)

Kc = [Br2] [F2]5 / [BrF5]2

d)

Kc = 2[BrF5]2 / ([Br2] × 5[F2]5)

e)

Kc = [Br2] [F2]2 / [BrF5]5

25.

This symbol indicates that a reaction is _____

a)

reversible

b)

irreversible

26.

What is the Keq expression for this reaction?

2 NO(g) + O2(g) ⇌ 2 NO2(g)

a)

Kc = [NO2]2 / [NO]2 [O2]

b)

Kc = [NO]2 [O2] / [NO2]2

c)

Kc = [NO]2 [O2] [NO2]2

d)

Kc = [NO2]2 / [NO]2 + [O2]

Similar Resources on Wayground

chemistry Test - reactivity

25 questions

chemistry Test - reactivity

quiz

Worksheet

•

10th Grade

Elements of the Periodic Table

22 questions

Elements of the Periodic Table

quiz

Worksheet

•

7th - 10th Grade

Ligações/Reações Fotoquímicas 10º (22-23)

22 questions

Ligações/Reações Fotoquímicas 10º (22-23)

quiz

Worksheet

•

10th Grade

Molecular geometry

22 questions

Molecular geometry

quiz

Worksheet

•

9th - 12th Grade

The Nature of Covalent Bonding

23 questions

The Nature of Covalent Bonding

quiz

Worksheet

•

10th Grade

Chemagix - Guess Who??

23 questions

Chemagix - Guess Who??

quiz

Worksheet

•

9th - 12th Grade

Chemistry review transfer electrons and ionic compounds

23 questions

Chemistry review transfer electrons and ionic compounds

quiz

Worksheet

•

10th Grade

THÀNH PHẦN NGUYÊN TỬ

21 questions

THÀNH PHẦN NGUYÊN TỬ

quiz

Worksheet

•

10th Grade