wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

Chemical Reactions Review

Total questions: 21

Worksheet time: 12mins

Name
Class
Date
1.

The process in which one or more substances are changed into new substances with different chemical and physical properties is called a _____

a)

chemical equation

b)

chemical reaction

c)

stoichiometry

d)

physical change

2.

If a chemical substance has been dissolved in water, what symbol would be used to represent the solution?

a)

(s)

b)

(g)

c)

(l)

d)

(aq)

3.

Choose the correct coefficients that balance the following equation.

Ca + N2 --->Ca3N2

a)

1,3,3

b)

2,3,1

c)

3,1,1

d)

4,1,3

4.

What are the original substances in a chemical reaction called?

a)

solutions

b)

reactants

c)

products

d)

polyatomic ions

5.

What type of reaction is occuring?

2 FeCl3 --> 2 Fe + 3 Cl2

a)

synthesis

b)

decomposition

c)

single replacement

d)

double replacement

6.

The type of reaction in which oxygen is a reactant and energy is produced is called ________.

a)

synthesis

b)

decomposition

c)

single replacement

d)

combustion

7.

What are the NEW substances produced in a chemical reaction called?

a)

reactants

b)

products

c)

polyatomic ions

d)

solutions

8.

What type of reaction

is occurring?

Al + 3 Ag(NO3)--> 3 Ag + Al(NO3)3

a)

synthesis

b)

decomposition

c)

single replacement

d)

double replacement

9.

Predict the products of the single replacement reaction:


Ca + Al2O3 -->

a)

Ca + Al2O3

b)

Ca + Al + O2

c)

CaAlO3

d)

Al + CaO

10.

Identify the reactants in this chemical reaction.

Ca + F2--> CaF2

a)

Ca

b)

F2

c)

Ca + F2

d)

CaF2

11.

The type of reaction in which 2 different compounds’ atoms or ions replace each other is called ________.

a)

synthesis

b)

decomposition

c)

single replacement

d)

double replacement

12.

Which of the following is not an indication of a chemical reaction taking place.

a)

color change

b)

odor change

c)

precipitate formation

d)

evaporation

13.

What conditions must a chemical reaction meet due to the symbols?


50K, 3 atm

------------------>

a)

heat added

b)

catalyst added

c)

a specific temperature and pressure required

d)

a specific pressure only required

14.

Select the coefficients to balance the following equation.

___Al + ___Ag(NO3) --> __Ag + __Al(NO3)3

a)

3,1,1,3

b)

1,3,3,1

c)

1,2,2,1

d)

2,1,1,2

15.

What type(s) of reaction is occurring?


4 Fe + 3 O2 --> 2 Fe2O3

a)

synthesis

b)

decomposition

c)

single replacement

d)

double replacement

16.

The type of reaction in which 2 or more reactants combine to form ONE product is called ________.

a)

synthesis

b)

decomposition

c)

single replacement

d)

double replacement

17.

List the coefficients in order for this chemical equation:

3 FeO + Ca3P2 --> Fe3P2 + 3 CaO

a)

3,0,0,3

b)

3,1,1,3

c)

3,2,1,0

d)

4,3,3,1

18.

What type of reaction is occuring?

FeCl2 + CaBr2 --> CaCl2 + FeBr2

a)

synthesis

b)

decomposition

c)

single replacement

d)

double replacement

19.

The type of reaction in which ONE reactant compound is broken down into smaller substances is called ________.

a)

synthesis

b)

decomposition

c)

single replacement

d)

double replacement

20.

Balance the following equation.

Al + S--> Al2S3

a)

2,2,1

b)

2,4,1

c)

2,3,1

d)

3,1,1

21.

Identify the product(s) in this chemical reaction.

Ca + F2 --> CaF2

a)

Ca

b)

F2

c)

CaF2

d)

Ca and F2