Question

write an equation each for decomposition reactions where energy is supplied in the form of heat,light or electricity.

Answer 1

DECOMPOSITION REACTION TAKING PLACE IN PRESENCE OF HEAT

CaCO3 ______ CaO + CO2

DECOMPOSITION REACTION TAKING PLACE IN PRESENCE OF LIGHT

2AgCl ______  2Ag +Cl2

DECOMPOSITION REACTION TAKING PLACE IN PRESENCE OF ELECTRICITY

2H2O _______ 2H2  + O2

Answer 2

Decomposition reaction requiring heat is known as thermal decomposition , CaCO3--------->CaO + CO2. Decomposition reaction requiring light is known as photo chemical decomposition reaction , 2AgCl-------2Ag + Cl2