Question

write an equation for decomposition reaction where energy is supplied in the form of heat/light /electricity

Answer 1

For heat: CaCo₃(s) ⇒ CaO(s) + CO₂ For sunlight: 2AgCl(s) ⇒ 2Ag(s) + Cl₂ (g) For electricity: 2H₂O ⇒ 2H₂ +O₂ Hope this helps! Cheers!

Answer 2

 CaCo₃(s) ⇒ CaO(s) + CO₂