Respuesta :

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.
alicecherry

Answer:

So think of it as when to different organisms come and dissolve with each other

Explanation:

When they do what happens we cant see it only under a microscope the organisms become active and when they are that's their reaction to the chemicals. BOOM CHEMICAL REACTIONS