Write one equation for decomposition reactions where energy is supplied in the form of heat, light or electricity.

Explanation

Decomposition by heat :
`underset ("Methane")(CH_(4)) overset ("Heat")rarrunderset("Carbon")(C)+underset("Hydrogen")(2H_(2))`
Decomposition by light
`("Hydrogen proxide")( 2H_(2)O_(2)) overset ("Light")underset("Water")(2H_(2)O)+underset("Oxygen")(O_(2)`
Decomposition by electricity :
`underset("Sodium chloride")(2NaCl("Molten"))overset("Electricity")rarrunderset("Sodium")(2Na)+underset("Chlorine")(Cl_(2)`