New Update in progress: Element: H2 (Hydrogen) Acts similar to O2, reacts with O2 to create either WATR or DSTW (Its your call, FinalFlash50) Element: LH2 (Liquid Hydrogen) EXTREAMLY cold (0K), becomes H2 when warmed to 20K, going to work on a MASSIVE pressure release when combusted with LOX...
I will not be adding diffusion, conversion to WATR/DSTW will be a one way.
EDIT: Element: 2H2O2 [H2O2]: The result of LH2 and LOX combining, stable yet HIGHLY explosive for people who like big bangs.
Even though there really is no point in adding it, kamikai pretty much said it all. O2 at best is meh.
If it ever was to be added, having it one way would be fine, electrolysis is pretty stupid and retarded and is probably much more complicated in real life than just zapping water, and there would literally be NO use in adding it.
Water has been and still is one of the fundamental 'powders' in the game and to mess with that would ruin what the game has always been about. It's a game and always will be.
If you want to add a bunch of chemical reactions and what not you are free to use the source and make your own Chemistry Toy or whatever, it's got the hard parts done already.