Question

How are reactions/ changes classified on the basis of heat given out or absorbed?

Answer 1

Chemical reactions can be classified as either exothermic or endothermic. An exothermic reaction releases energy into its surroundings. An endothermic reaction, on the other hand, absorbs energy from its surroundings in the form of heat.

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Answer 2

Chemical reactions can be classified as either exothermic or endothermic. An exothermic reaction releases energy into its surroundings. An endothermic reaction, on the other hand, absorbs energy from its surroundings in the form of heat.