It's been so long, Honda, I had to look it up. Yeah, I think
   Stoichiometry is the CLOSEST POINT between molecular chemistry
   and theoretical physics and mathematics. It depends on ideal
   forms.* The system it's working is a theoretical perfect closed
   system where no mass is wasted.... ...and you really just have
   to trust that it's true because there's no ideal closed
   environments... there's no ideal gas... and what you get is a
   "close enough to be functional" answer, while using all this
   extreme precision. I remember it now.* Being part of Classical
   Science (Stoichiometry, pre 20th Century... pre 19th
   Century...), it was hard for me to accept it completely because
   I had already been exposed (mostly through hobby reading) to
   quantum mechanics and relativity and complexity theories. I kept
   arguing with the chemistry teacher.* "But but but..." and all he
   could say is, "I know, I know but you just have to deal with it
   because we haven't connected the two yet very well and we might
   never be able to". Ugh.
   To analogize to biology and "naming things", it's behavioral
   biology.* Group dynamics of particular species in a perfect rave
   listening to perfect raving music and who pickpockets whom and
   who puts date rape drugs in whose drinks and what dances they
   are dancing.... ...in a vacuum ...with no visible electricity
   ...and no gravity... ...and everybody is PERFECTLY spaced apart
   in a Brownian motion (ideal gas) ..and no DJ But at least with
   molecular chemistry, they have arms and legs... sometimes...