Saturday, July 16, 2005

urgh...i m stunk at home today...nvm its ok...i shall maximise my time n study some chem...i dunno when it happened but i seem to be able to type rather quickly...haha....

i m just bored la realli nothing to say...just tht tonight thanks to my relative from new zealand coming...i m in for some good food...haha...woots....not sleepy anymore...just super sian sian sian sian sian sian sian sian sian sian sian sian sian sian sian sian sian sian sian sian sian sian sian sian

i feel like playing soccer....lets see how much nonsense on cations i can remember.

copper : blue ppt in sodium hyroxide, does not dissolve in excess
blue ppt in ammonia, dissolves in excess
iron(II) : dirty green ppt in sodium hydroxide, does not dissolve in excess
dirty green ppt in ammonia, does not dissolve in excess
iron(III) : brown ppt in sodium hydroxide, does not dissolve in excess
brown ppt in ammonia, does not dissolve in excess
ammonium : heat in sodium hydroxide to produce ammonia gas n turn red litmus paper blue
no reaction in ammonia
zinc : white ppt in sodium hydroxide, dissolves in excess
white ppt in ammonia, dissolves in excess
calcium : white ppt in sodium hydroxide, does not dissolve in excess
no reaction in ammonia
aluminium/lead : white ppt in sodium hydroxide, dissolves in excess
white ppt in ammonia, does not dissolve in excess

haha...i tink i m right...m i?

|cowpoo| 12:19 PM|

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