Question

What is a chemical reaction?

Oь
A chemical reaction happens only under special circumstances.
A chemical reaction is when the bonds of one substance form and then break which makes something different.
A chemical reaction has infinite possiblities to happen.
A chemical reaction is when the bonds of one substance break and form new bonds to make something different.
ос
Od

Answer 1

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