Question

12. Write one equation each for decomposition reactions where energy is supplied in
the form of heat, light or electricity.
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Answer 1

Answer:

Heat: CaCO3 (s) --> CaO (s) + CO2 (g)

Light: 2AgCl (s) --> 2Ag (s) + Cl2 (g)

Electricity: 2H2O (l) --> 2H2 (g) + O2 (g)

Answer 2

Answer:

Heat: CaCO3 (s) --> CaO (s) + CO2 (g)

Light: 2AgCl (s) --> 2Ag (s) + Cl2 (g)

Electricity: 2H2O (l) --> 2H2 (g) + O2 (g)

I hope it helps you...