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Thermal decomposition is a chemical reaction where a single substance breaks into two or more simple substances when heated.
CaCO3--->CaO+CO2
Photo decomposition is a chemical reaction in which a substance is broken down into simple substances by exposure to light (photons).
2H2O2⟶2H2O+O2
Electrolytic decomposition may result when the electric current is passed through an aqueous solution of a compound.
2H2O(l) ⟶2H2(g)+O2(g)
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Answer:
Decomposition reaction:1) Heat =CaCO3-CaO+CO2
Decomposition reaction :2) light
= 2AgCl-2Ag+Cl2
Decomposition Reaction :3) electricity
2H2O-2H2+O2
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