Decomposition reactions require energy either in the form of the heat or light or electricity for breaking down the reactants. Write one equations each for decomposition reactions where energy is supplied in the form of heat, light and electricity .

Explanation

`{:(CaCO_(3)overset("heat")toCaO+CO_(2)),(2FeSO_(4)overset("heat")toFe_(2)O_(3)+SO_(2)+SO_(3)),(2Pb(NO_(3))_(2)overset("heat")to 2PbO+4NO_(2)+ O_(2)):}}`Any one
`{:(2AgCl overset("Sunlight")to2Ag +Cl_(2)),(2AgBr overset("Sunlight")to 2Ag +Br_(2)),(2H_(2)O overset("electricity")to 2H_(2)+ O_(2)):}}` Any one (or any other equation for above decomposition reaction)