Types of Reactions

Question 1

Name the 5 common types of reactions:

Answer 1

Combustion
Synthesis
Decomposition 
Single Displacement
Double Displacement

Question 2

What happens in a combustion reaction? Give an example:

Answer 2

Hydrocarbons + Oxygen yields carbon dioxide and water; C2H5OH + 3O2 –> 2CO2 + 3H2O

Question 3

What happens in a synthesis reaction? Give an example:

Answer 3

A + B yields C; Typically 2 elements make a compound; 2Mg + O2 —-> 2MgO

Question 4

What happens in a decomposition reaction? Give an example:

Answer 4

Opposite of synthesis; Large compound decomposes to two or more simpler compounds; 2NaHCO3 —-> H2O + CO2 + Na2CO3

Question 5

What happens in a single displacement reaction? Give an example:

Answer 5

Compound and element react to form a new compound and element; Mg + 2HCl —-> MgCl2 + H2

Question 6

What happens in a double displacement reaction? Give an example:

Answer 6

Two compounds react to form two new compounds; AgNO3 + NaCl —-> AgCl + NaNO3