relief.

we've been very very free today...until maths period, which is the 7th period.
yup, moral relief, english relief, pjk relief, bio. relief and chem. relief.
never had so much reliefs in my life.
and being so free is actually...not fun.
fell asleep again because of free-ness x)

i prefer to study more than having a whole bunch of relief periods. (wow. i cant believe that i actually say that, i mean wrote that. *surprised* am i starting to like...books??)

anyways we did carry out an experiment about salt solutions on the one non-relief chem. period.
ammonia aqueous + iron (II) sulphate = a green colour solution (suppose to be)
but our group's result turned out to be:
"ammonia aqueous" + iron (II) sulphate = a colourless solution
because...
i took the wrong solution x/
i thought ammonium are all the same (because they're all "NH")
so in the end the ammonium chlorides are dumped into the sink *wasted*
it's all my fault you know...

lesson learnt by daw: ammonium chloride and ammonia aqueous are not the same, although they're all "NH".

ammonium chloride = NH4Cl2

and

ammonia aqueous = NH3

p.s. sorry people x/