Question

What is a decomposition reaction? Perform an activity to explin decomposition0reaction

Answer 1

A decomposition reaction is a kind of reaction where in the reactant separates to form two or more new products. It is generally given by the equation:

AB⇒ A+B

Experiment to show the decomposition reaction is:

We know that there is carbonic acid in soft drinks. A decomposition reaction takes place when carbonicacid breaks down. It produces water and carbondioxide.

The equation is:

H2CO3 → H2O + CO2

Answer 2

Answer: When a compound breaks to form 2 or more products ( compound, gases, oxides ) then the reaction is called Decomposition Reaction. They are endothermic reactions which require energy to proceed ( light energy, heat energy ).

Examples--

2Pb(NO2)3 -------on heating------> 2PbO + 4NO2 + O2

Heat Pb(NO2)3. Brown fumes arise in test tube.