Question

A story on chemical reaction or electric current

Answer 1

Story in chemical reaction is about the general issue of bond formation and bond breaking where by the energy required to break bond of reactant to form product is called activation energy

Scientist study the whole process and bring law of law conservation of mass,law of definite proportion (Louis proust 1799),law of multiple proportion (Dalton 1803) law of reciprocal proportion(Ritcher1792)

Story about electric current

It's about rate of flow of electric charge in given point

Inshort discovered by the work of Faraday and Alessandro Volta1803italian physics

Answer 2

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