i realised that there is no exact formula to answer those questions.
its not maths, when you see stats questions you do it the stats way.
its not chem, when you add calcium carbonate to HCl you will get carbon dioxide gas.
when you do
x and
y, you may not get
z.
just a little factor can cause a whole different outcome.
ohwels.
you know it when you've lost it.
i guess its just too bad.
maybe have to just let it drift away with the wind.
mata ne..