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I reckon something on CFC and ozone will bein it this year, maybe not ext. response though. At least two pracs for core, and (if unlucky) two pracs for shipwrecks. A decent sized haber process question sounds likely, was it even mentioned last year? And some eutrophication in the short answer...

Nice, I know all of them, except factors that effect the rate of electrolysis. Would that be the solution content, open to air, ect?

D. The negative terminal is the anode where oxidation will occur. Metal z has the highest voltage, compared to Pb, when it is the anode and is therefore the metal most likely to oxidise. This is followed by y then Pb. Increasing ease of oxidation means that the least likely to oxidise is placed...

Sigh I missed the 2 H ions at the start, and got the base in excess. Silly mistakes ftw.

27) 9.60 x 10^-3 mol/L 26b) Ba(2+) must be added first to identify if sulfate ions are present. Chloride will not precipitate at this stage. In the final stage the Ag(+) will precipitate the chloride present

Not esters. I would have to say the one on identifying alkanes and alkenes (bromine liquid in cyclohexane/ene).

User: SkimDawg UAI Guess: 81.75 Actual UAI: Date Signed: November 5th, 2008

A bit off-topic, what is the most popular optional topic?

Arrhenius; stated that ACIDS produced H+ IONS when in WATER. He proposed the idea that acids disassociate into their ions when they are dissolved in water. Thus, he hypothesised that acids release a H+ when in an aqueous solution. He also said that bases release OH־ ions in aqueous solutions...

Whoa 16 years of marking, you would've almost seen it all by now hey?

Yep, whole class left after 1 hour, I was left there for a lonely 2 hours lol.

http://www.cci.net.au/conqchem/HSC06.htm These are 2001, 2002, 2005 and 2006.

Are you serious? 87? jesus lol

I know what your trying to say, its just that, its ALOT harder to remember when you havent actually done the prac, hence harder to remember from notes instead of personal experience. Get what im saying?

Yeah thanks for pointing that out man...heaps appreciated. I dont think I need to elaborate on this, my sarcasm is clear.

They had it in the 2007 paper, but then again, bos can be lame and repeat qu's that everyone went bad on the previous year

Yeah this has also helped me. Fucken I swear, my teachers must've missed like 10 pracs. That physics Q16 today was gay because we didn't do it, so I just made Hertz's experiment instead (they dont know haha).

lol well im set, just what I did :D

Hey all, how did you go, the good/bad, ect. I found it a good paper, but lack of study was an influence on how well I went lol.

I didn't ike the paper at first, but as I looked closely, it got better and better. Sigh I have to leave for gay SDD in like 5 mins..