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Worksheets

Types of Reactions

Total questions: 20

Worksheet time: 18mins

Name
Class
Date
1.

This type of reaction always involves oxygen, and produces carbon dioxide and water:

(a)  

2.

In this type of reaction a complex molecule breaks down into two or more simple substances:

(a)  

3.

In this type of reaction and acid and a base react to produce water and another compound:

(a)  

4.

What type of reaction is this?

K2SO4(aq) + CaI2(aq) ---> 2KI(aq) + CaSO4(s)

a)

acid-base

b)

combustion

c)

synthesis

d)

precipitation

5.

What type of reaction is this?

4Fe(s) + 3O2(g) ---> 2 Fe2O3(s)

a)

double displacement

b)

synthesis

c)

combustion

d)

decomposition

6.

What type of reaction is this?

3Ca + 2AlCl3 --> 3CaCl2 + 2Al

a)

Synthesis

b)

Decomposition

c)

Single Displacement

d)

Double Displacement

7.

What type of reaction is this?

C4H12 + O2 → CO2 + H2O

a)

Synthesis

b)

Combustion

c)

Single Replacement

d)

Double Replacement

8.

What type of reaction is this?

3KOH(aq) + H3PO4(aq) --> K3PO4(aq) + 3H2O(l)

a)

Synthesis

b)

Decomposition

c)

Single displacement

d)

acid-base

9.

In this type of reaction a single element reacts with a compound and replaces an element. The result is a new compound and a different single element:

(a)  

10.

Identify this reaction type:

H2CO3(aq) ---> H2O(l) + CO2(g)

a)

precipitation

b)

synthesis

c)

single displacement

d)

decomposition

11.

Identify this reaction type:

KOH(aq) + HBr(aq) ---> KBr(aq) + H2O(l)

a)

combustion

b)

acid base

c)

decomposition

d)

precipitation

12.

What types of reaction is this? There are two right answers

2K3PO4(aq) + 3MgF2(aq) ---> 6KF(aq) + 2Mg3(PO4)2(s)

a)

precipitation

b)

acid-base

c)

combustion

d)

double displacement

13.
C4H12 + O2 → CO2 + H2O
a)
Synthesis
b)
Combustion
c)
Single Replacement
d)
Double Replacement
14.
4Si + S8 --> 2Si2S4
a)
Synthesis
b)
Decomposition
c)
Single displacement
d)
Double displacement
15.

3Mg(s) + N2(g) --> Mg3N2(s)

a)

Synthesis

b)

Decomposition

c)

Single displacement

d)

Combustion

16.

Fe(s) + H2SO4(aq) --> Fe2(SO4)3(aq) + H2(g)

a)

Synthesis (combination)

b)

Decomposition

c)

Single replacement

d)

Combustion

17.

Which of the following is the general formula for a double displacement reaction?

a)

A + B → AB

b)

AB → A + B

c)

AB + C → AC + B

d)

AB + CD → AC + BD

18.

What type of reaction is this?

2H2O2(aq) ---> 2H2O(l) + O2(g)

a)

synthesis

b)

single replacement

c)

decomposition

d)

precipitation

19.

What types of reaction is this?

There are two right answers

2Li3PO4(aq) + 3BeCl2(aq) ---> 6LiCl(aq) + 2Be3(PO4)2(s)

a)

precipitation

b)

acid-base

c)

combustion

d)

double displacement

20.

What type of reaction has the general formula

A + BC ---> AC +B ?

a)

synthesis

b)

double displacement

c)

single displacement

d)

decomposition