Question

Give 5 example of decomposition reaction in our day to day life

Answer 1

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Decomposition reactions are chemical reactions in which a more complex molecule breaks down to make simpler ones. There are three types of decomposition reactions:

Thermal decomposition reactions;

Elctrolytic decomposition reactions;

Photo decomposition reactions.

Thermal decomposition - such reactions are usually endothermic, since energy in the form of heat is required to break the bonds of the more complex molecule. Examples include

CaCO3(s)+heat→a(s)+CO2(g) - calcium carbonate decomposes into calcium oxide and carbon dioxide when heated;

2KCl3(s)+heat→2Kl(s)+3O2(g)

- potassium chlorate decomposes into potassium chloride and oxygen gas when ehated;

2Fe(OH)3+heat→Fe2O3+3H2O

-ferric dioxide decomposes into ferric oxide and water when heated;

Electrolytic decomposition - such reactions occur when an electric current is passed through an aqueous solution of a compound. Two classic examples are the electrolysis of water

Answer 2

Answer:

thermal decomposition ,photo decomposition ,electrolytic decomposition .......