Question

Define Chemical reaction. ​

Answer 1

Answer:

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

Answer 2

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Chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products.

Substances are either chemical elements or compounds.

A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.