Question

what is chemical reaction​

Answer 1

$<marquee behaviour="slide" direction="up" style="background : yellow">$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

$\huge\color{aqua}\implies\huge \bold \green{ Answer}$

• 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.