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so basically: excess nutrients --> growth of algae --> all oxygen consumed --> algae dies --> increased numbers of bacteria --> toxins --> everything generally bad ???

isn't it the bacteria that eats the rotting crap that consumes the oxygen?

yeah, but i love speculation :rolleyes:

i was just discussing this with my friend. do you think, because record numbers are doing chem this year, they'd make it harder than previous years?

how is it more time consuming? you don't waste time constructing sentences, and they don't expect a perfectly ruled table for that kind of answer. i usually get away with my naughts and crosses type scribble

for straighforward comparison questions it's best to do a table, cos then you know you won't forget anything, or contradict yourself. evaluation statement only if they ask for that. edit: damn i type slow...

and good on them for underestimating us :P if they didn't, i'd be even more screwed.

thanks doogsy and tommy_lamp

so, wait. let me just check. oxidation ALWAYS occurs at the anode, and reduction ALWAYS occurs at the cathode, but whether they're positive or negative changes between an electrolytic cell and a galvanic cell right?

but that requires thinking ;)

does anyone have a really good way to memorise what produces ppt with what? i can never remember those ion tests :(

yeah, that's what i always thought - a mark in the 80's considered pretty good for HSC chem exam.

i completely agree about the discrepancy between what we studied and what they asked. i hope you're right about the marking :S

read through the threads and stuff. yours looks better than many people's. like mine..... :(

yeah, i sucked hard in prelim, and now i'm doing much better, but still not great. the "better" part could be because my friends dropped chem so now i have no one to distract me :P i'd say production. all that polymer stuff is easy

ehh, i'm not so good at chem. kinda surprised at the numbers aiming for 90-100.

happened to me for Mod History trial - and that was 3 hours! :(

but how would THEY (BOS) know that as a year, we suck, until they test us as a year?

i'm wondering the same thing. i'm considering going to UTS for the international studies course, but i can get into other unis science for sure. would UTS be a stupid choice then? what's wrong with it?

but how would they know that until they test us? o_O