Question

Give decomposition reaction where energy is supplied in the form of heat ,light selectricity

Answer 1

CaCO3 gives rise to CaO + CO2
2AgBr2 gives rise to 2Ag+Br2
2H2O gives rise to 2H2+O2

Answer 2

Here is the answer for your question!!!

1. CaCo3 (s) -----> Cao (s) + Co2 (g) {heat energy}

2. 2AgCl (s) -----> 2Ag (s) + Cl2 (g) {Light energy}

3. 2H2 (l) ------> 2H2 (g) + O2 (g) {Electricity}