Question

decomposition reaction requires energy either in the form of heat or light or electricity for Breaking Down The reactance write one equation for each for decomposition reactions where energy is supplied in the form of heat light and electricity?

Answer 1

decomposition reaction for heat
2FeSO4 (heat) =Fe2O3 + SO2 + SO3

for light
2AgCl (light)= 2Al + Cl2


for electricity
2H2O (electricity) =2H2 + O2

Answer 2

Decomposition reaction requires energy either in the form of heat or light or electricity for breaking down the reactants.

Reactions:

i) Decomposition due to heat:

CaCO3 (s) [∆] ---> CaO (s) + CO2 (g)

ii) Decomposition due to light:

2AgBr(s) [sunlight]---> 2Ag(s)+Br2(g)

iii) Decomposition due to electricity:

2NaCl [electricity]---> 2Na+Cl2