Question

Write an equation each for decomposition reaction where energy is supplied in the form of heat ,light, and electricity

Answer 1

CaCo3---------- CaO + CO2


2FeSO4 ----------- Fe2SO3 +SO2 +SO2

Answer 2

Decomposition reactions are a type of chemical reaction that involves breaking down a compound into smaller compounds or individual elements. These reactions often involve an input of energy in the form of heat, light, or electricity to break down the compound

(a) Decomposition by heat or thermal energy

Ca(OH)2⇄CaO + H2O, 

(b) Decomposition by light or photolysis

2AgCl —> 2Ag + Cl2 (in presence of light)

(c) Decomposition by electricity or electrolysis

H2O---->2H2+O2