november 2001, got 2.889 years or something
0.889*12 = ~ 10.6ish months
that corresponds to november. cause x<=12
think thats right :s...?
expecting ~100/120 - got a few stupid things wrong (simpsons rule -_-. put h/2 instead of h/3)
was a fairly hard test though
yeah my bad
but how were we sposed to no the Pb2+ cations had a distinctive colour when i cant find it in and text book :s . only has precipitate tests. or were spose to assume that all metal ions produce a distinctive colour? BOS may take both answers ? :S confused lol
spose its only 1...
yeah my bad
but how were we sposed to no the Pb2+ cations had a distinctive colour when i cant find it in and text book :s . only has precipitate tests. or were spose to assume that all metal ions produce a distinctive colour? BOS may take both answers ? :S confused lol
spose its only 1...
yeah i said something like that. not all the solutions would of given a colour ie: hcl and barium nitrate. people were sayin shit like if would of been toxic with the lead nitrate being vaporised. either way
was such a good 7 marker
technitium -99 for medical - diagonistic tracer - ataches to haeglobin etc
americium - ... - for industrial use as smoke alarm
cobalt -60 - used for measure thickness in metals/ structures
ties in wit physics :D
i said industrial chemist (dnt no if thats right)- uses Le chatelliers principle lol - manages out puts /imputs of reactants and products, changes reaction conditions to increase desired product, etc - ie: haber process
thats right :s?
wat question was the haber process, i cant remember lol. abit of a blur
i fucked the concentration one to, realisted it was diprotic lik 3 mins before the end and didnt hav enough time to change all my answers for the 3 questions. sigh. if u used the 0.005 mol/L concentration for the first...
i stuffed up the harwood section =[. didnt really sudy for it, and focused on the interpretations rather than the emotions all year -_-. wrote only 3 pages :O of shit. but my writings small lol
I= 9 pages
II=3 pages
III=8 pages
yep sure did haha
was an alright test. the first section was hard. specially test 2. text 3 and 1 were ok.
essay question fitted in to my essay kinda ok. feel sorry for PS people though lol
i wont be 18 either, but ohwells jst get drunk in the hotel room, and then go walkin round the beach and streets etc. sure there will be heapssss of things to do other than go to clubs all week.
:)