I'm not sure why that's not considered "chemistry".
I'm not sure why that's not considered "chemistry".
chemical reaction: 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.
So, a chemical reaction is not just what you would colloquially describe as a reaction of something that belongs to the realm of chemistry, it has a specific definition. A reaction is H + O2 = H2O (omitting concerns of stoichiometry for simplicities sake). A reaction is not e.g. salt dissolving in water, because salt stays salt (NaCl) and water stays water (H2O)
This is something I wonder about. How separate are the salt ions when salt dissolves in water? If you add a chunk of sodium to water it will explode; that doesn't happen when you add salt.