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As it should be physics = maths. not this impact on society bs.

Chem was ok for me. Yer stupid mistakes me too =( Physics was ok today imo. Hopefully did ok. How did u go?

C A C D C A C C A B B D A --> Wrong :mad1: C A

Yer charge is the charge on the electron just positive. As for the answer. Honestly cant remember.

Btw anna. How did you go in chem? And good luck with physics 2morow! It's my last exam too =)

No worries. Good luck with Chem! Anoying at some times, but really cool subject.

Meh, I'm no good at chem neway.

Macquarie also said it was after. But dam. I didn't pick up on conquering saying it was before. If I had known, I would've put it as before.

Um yer it does. It's passivating nature protects itself (not the less reactive metal). But it will preferentially oxidise anyway, because it is the more active metal. In effect, by choosing aluminium, there will be no corrosion.

This^^^ Whether it's valid for the question or not is another thing =p

Your reasoning doesn't make sense... Niche also falls under types of market, From the syllabus: Types of markets - resource, industrial, intermediate, consumer, mass, niche But anyway, its over now. :uhhuh:

I started off by explaining "the chemistry involved" as it said. Talking about oxidation potentials etc. If you look at it in terms of relative activity, yes copper will be favourable as it will act as the cathode, and the screws will act as anodic sites. Since the screws are easier/cheaper to...

Yer lol. Lota people will get screwed if they do mark like that. They got a point though. It didn't say identify, it said name. Lol.

For the salt question. I think it said name the salt. In our trial, we had a question that also said name. They only accepted (say in this case) Potassium acetate. They didn't accept writing the formula, i.e. CH3COOK. Dono how it will work in the HSC though.

Makes sense. I thought maybe that's the case too. Can anyone else confirm this? I mean that's what the instructions say, put a cross through it. So somehow it should be marked correctly?

I think my parents are content that I've studied really hard this year. And anything drastic (God forbid) would mean that I've just had some bad luck.

So I know MC are computer marked. Just a question though. Say you coloured an answer, and then later crossed it out to put another answer. How does the computer tell which one your answer is? I mean I don't think it would detect the cross, would it? If anything it would read it as two...

=0 so by very easy u mean state rank? Or at the very least close. =p

Yer true. Plus it seems like a lot of people did good. Which is a pain cos the test would've failed at differentiating people. That really put my hopes down.

Well, there was a heavy focus on production. Which was good imho. It's probably the topic everyone is strongest at seeing as we've studies it for longest.