Question

what is a decomposition reaction ? Give an example of a decomposition reaction. Desctribe an activity illustrate such a reaction by heating.

Answer 1

A decomposition reaction is a type of chemical reaction where one reactant yields two or more products.

The general form for a decomposition reaction is

$AB⟶A+B$

* Take about 2g lead nitrate powder in a boiling tube .
* hold the boiling tube with a pair of tongs and heat it over a flame
* You will observe the emission of brown fumes .
These fumes are of nitrogen dioxide ($N{O}_2$).
The reaction that takes place is - .