Question

Describe decomposition reaction . Write one equation each for decomposition reaction . Where energy is supplied in the form of heat , light, electricity

Answer 1

the rxn in which one reactant gives simpler products
fe2so4= fe2 + so3+ so2

chemical energy

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}