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If heat is written along with the products in a chemical equation and light is also emitted during the reaction, what is the nature of the reaction?

Answer and explanation

Correct answer: Exothermic

Heat written on the product side shows that the reaction releases heat to the surroundings. Emission of light is also a sign of energy release. Therefore, the reaction is exothermic. In contrast, an endothermic reaction absorbs heat, so heat is written on the reactant side.

Related tags

ScienceClass10Chemical ReactionsChemical EquationsExothermic ReactionsEnergy Changes

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