Decomposition Reaction:

Decomposition Reaction: 

The reaction which involves the breaking down of one compound into two or more substances (elements or compounds).

1.      CuCO₃           -->      CuO     +          CO₂

                             

2.      2PbO₂               -->    2PbO   +          O₂       

                                   

3.      2H₂O₂        -->       2H₂O   +          O₂

4.      2KClO₃         -->  2KCl    +          3O₂

5.      2HgO         -->     2Hg      +          O₂