Question

Hello❤
Define Chemical reaction!​

Answer 1

Answer:

a process that involves rearrangement of the molecular or ionic structure of a substance, as distinct from a change in physical form or a nuclear reaction.

Answer 2

Hey mate here is your answer....

The reactions which are observed in daily life such as spoiling of milk in summer, rusting of iron, formation of glucose by photosynthesis, digestion of food, etc. are called chemical reaction.

In other words, the reactions of substances which form new substances is called chemical reaction.

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