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Classifying Chemical Reactions

Total questions: 25

Worksheet time: 25mins

Name
Class
Date
1.

Identify the type of chemical reaction:

2SO2 + O2 → 2SO3

a)

Decomposition

b)

Combustion

c)

Single Replacement

d)

Combination/

Synthesis

2.

Identify the type of chemical reaction:

AgNO3 + NaCl → AgCl + NaNO3

a)

Combination/

Synthesis

b)

Combustion

c)

Single Replacement

d)

Double Replacement

3.

Identify the type of chemical reaction:

C3H7OH + O2 → CO2 + H2O

a)

Combination/

Synthesis

b)

Double Replacement

c)

Combustion

d)

Single Replacement

4.

Identify the type of chemical reaction:

HCl + NaOH → H2O + NaCl

a)

Combination/

Synthesis

b)

Combustion

c)

Single Replacement

d)

Double Replacement

5.

Match the following Reaction types

a)

Zn(s) + 2HCl(aq) --> ZnCl2(aq) + H2

1.

Single replacement

b)

C6H12O6(s) + O2 (g) --> 6CO2 + 6H2O(l) + heat

2.

Combustion

c)

CH3CO2H +H2O --> CH3CO2- + H3O+

3.

Acid-Base

d)

6CO2 + 6H20 + light energy --> C6H12O6 + 6O2

4.

Synthesis

e)

2H2O2 + light --> 2H20 + O2

5.

Decomposition

6.

What reaction has the following general formula:

a)

Synthesis

b)

Decomposition

c)

Combustion

d)

Single Replacement

e)

Double Replacement

7.

Identify the type of chemical reaction

a)

Synthesis

b)

Decomposition

c)

Single replacement

d)

Double replacement

e)

Combustion

8.

What type of reaction involves the breaking down of a substance into simpler substances?

a)

Single Displacement Reaction

b)

Double Displacement Reaction

c)

Synthesis Reaction

d)

Decomposition Reaction

9.

A new compound is formed by the combination of simpler reactants, such as nitrogen dioxide and oxygen combine (a component of smog) forming in the atmosphere. This is a ​ (a)  

Choose from the below words

synthesis reaction

decomposition reaction

combustion reaction

10.

Identify the type of chemical reaction:

4Fe + 3O2 → 2Fe2O3

a)

Combination/

Synthesis

b)

Single Replacement

c)

Double Replacement

d)

Combustion

11.

Identify the type of chemical reaction:

(NH4)2CO3 → 2NH3 + H2O + CO2

a)

Combustion

b)

Single Replacement

c)

Decomposition

d)

Combination/

Synthesis

12.

Identify the type of chemical reaction:

C10H22 + O2 → CO2 + H2O

a)

Double Replacement

b)

Combustion

c)

Decomposition

d)

Single Replacement

13.

Identify the type of chemical reaction:

2FeCl3 + 3Zn → 2Fe + 3ZnCl2

a)

Double replacement

b)

Decomposition

c)

Single replacement

d)

Combination/

Synthesis

14.

Identify the type of chemical reaction:

2Al + 6HCl → 2AlCl3 + 3H2

a)

Single Replacement

b)

Double Replacement

c)

Combination/

Synthesis

d)

Decomposition

15.

Identify the type of chemical reaction:

MgCO3 → MgO + CO2

a)

Double Replacement

b)

Decomposition

c)

Single Replacement

d)

Combination/

Synthesis

16.

In the reaction Pb(NO3)2(aq) + KI(aq) 🡪 KNO3(aq) + PbI2(s), what type of chemical reaction is taking place?

a)

Synthesis

b)

Decomposition

c)

Double-Replacement

d)

Combustion

17.

Match the following reactions

a)

2 or more reactants combine to make 1 product

1.

Synthesis

b)

1 reactant breaks down into 2 or more products

2.

Decomposition

c)

A reaction in which one element replaces a similar element in a compound

3.

Single-Replacement

d)

A reaction in which two ionic compound reactants switch ions, forming two new ionic compound products

4.

Double-Replacement

e)

A reaction in which a substance reacts with oxygen gas and always produces carbon dioxide and water

5.

Combustion

18.

Organize these reactions into the right categories

Categorize the following

2Na + Cl2 🡪 2NaCl

H2O + SO3 🡪 H2SO4

2Al + 3I2 🡪 2AlI3

2H2O 🡪 2H2 + O2

H2CO3 🡪 H2O + CO2

2H2O2 🡪 2H2O + O2

Cu + 2AgNO3 🡪 Cu(NO3)2 + 2Ag

Zn + CuSO4 🡪 ZnSO4 + Cu

Fe + CuSO4 🡪 FeSO4 + Cu

Pb(NO3)2 + KI 🡪 KNO3 + PbI2

NaCl + AgNO3 🡪 NaNO3 + AgCl

NaHCO3 + HC2H3O2 🡪 H2CO3 + NaC2H3O2

Synthesis
Decomposition
Single Replacement
Double Replacement
19.

What type of chemical reaction is represented by the equation 2Na(s) + Cl2(g) 🡪 2NaCl(s)?

a)

Combustion

b)

Decomposition

c)

Single-Replacement

d)

Synthesis

20.

In which type of chemical reaction does one reactant break down into 2 or more products?

a)

Double-Replacement

b)

Synthesis

c)

Decomposition

d)

Combustion

21.

What type of chemical reaction is characterized by the burning of a substance with oxygen as a reactant and carbon dioxide and water as products?

a)

Combustion

b)

Decomposition

c)

Synthesis

d)

Single-Replacement

22.

Identify the type of chemical reaction: @@ ext{2H}_2 ext{O}_2 ightarrow ext{2H}_2 ext{O} + ext{O}_2@@

a)

A) Decomposition

b)

B) Combustion

c)

C) Single Replacement

d)

D) Double Replacement

23.

Identify the type of chemical reaction: @@ ext{CaCO}_3 ightarrow ext{CaO} + ext{CO}_2@@

a)

A) Combination/Synthesis

b)

B) Decomposition

c)

C) Single Replacement

d)

D) Double Replacement

24.

Identify the type of chemical reaction: @@ ext{2Na} + ext{Cl}_2 ightarrow ext{2NaCl}@@

a)

A) Combustion

b)

B) Decomposition

c)

C) Single Replacement

d)

D) Combination/Synthesis

25.

Identify the type of chemical reaction: @@ ext{CH}_4 + ext{2O}_2 ightarrow ext{CO}_2 + ext{2H}_2 ext{O}@@

a)

A) Combination/Synthesis

b)

B) Double Replacement

c)

C) Combustion

d)

D) Single Replacement

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