Types of chemical reactions

Types of chemical reactions

1. combination reaction

In the combination reaction two or more reactants add up to form a product.

Ex : Burning of carbon forms carbon di oxide.

C  + O2                                      →                         CO2


2. Decomposition reaction

In a decomposition reaction, one substance breaks down into two or more simpler substances.

Ex: The decomposition of baking soda into sodium carbonate water and carbon di oxide.

2NaHCO                              →                  Na2CO3 +H2O + CO2


3. Displacement reaction

In a displacement reaction, one element displaces another from a compound and takes its place in the compound.

Ex: The displacement of copper from copper sulphate by Iron.

Fe +CuSO                          →           Cu   + FeSO4


4.Neutralization reaction

In a Neutralization reaction, an acid reacts with base to form salt and water.

Ex: Hydrochloric acid reacts with sodium hydroxide to give salt and water.

HCl  +      NaOH                 →           NaCl    +  H2O