Chemical change which takes place at heat light and electricity
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in the presence of heat thermal chemical reaction. in the presence of light photo chemical reaction. in the prance of electricity electro chemical reaction.
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Whenever a chemical change takes place, we say that a chemical reaction has occured.
The reactions in which we have to supply energy for the reaction to take place are called endothermic reactions. Usually decomposition reactions (in which one reactant breaks and gives two or more products) are endothermic reactions.
Energy required - Heat : Thermal Decomposition Reaction
Energy required - Light : Photolytic Decomposition Reaction
Energy required - Electricity : Electrolytic Decomposition Reaction
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