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I fully snapped my screen and laptop in half before trials but they gave me a replacement the next day. I don't think I get to keep it though, although it doesn't affect myself that much.. I was hoping to give it to my mum.

Oye totes a band 3 answer man. I didn't even post up a full answer, i was just suggesting what to put. Plus, its extremely unlikely to have a 7 marker for a model... I'd say only 3 marks tops, maybe even 4.

How do you find out your scaling of marks? o_o

I always go for the first method (minus the non dissolved solids), although the difference is only VERY slim (like non dissolved is usually like 0.1 or something). In successone, there are a few similar questions however they vary in the way they approach the question (some is the first method...

To figure out TDS - if we find out the mass of non dissolved solids (filter paper) and then we figure out the mass of dissolved solids EG: 2g of non-dissolved solids, 4g of dissolved solids and we have a 1L sample of water is the % of TDS 4/(1000-2)x100 or is it just 4/(1000) x 100 ?

Man, that must suck. Just try and get your head back in the zone and keep working. It's better not to hear about these things at a time like this. My aunty has been in hospital for a month now and she's suffering from severe depression. She usually visits every week for 3 days and helps us...

hands up in da ayerrrrrrrrrrr

Oh gosh, I hated these laptops when we first got them. Teachers kept enforcing that we had to bring our laptops EVERYDAY regardless of whether we use them or not (we have no lockers, idk if other schools do but I have to walk 2km to school and 2km from school everyday and I feel like dying). And...

Lolol I think its my favourite, followed closely by acidic environment. It makes me happy when I get to the option part because I just keep writing and doodling on. btw, how many pages (A4 binders) should we be writing for the 7 markers? I'm usually writing about 2.25-2.5 pages and for the 5...

Not necessarily... I doubt you'll even see a 7 marker on models. If you look at q28e in the 2007 paper and the successone answers there's no equation. Furthermore, if you model with people, the best you can write is A + B <---> C where C is a couple. As for modelling with ball and stick you can...

It says model. So id do ball and stick model (put them into a tray, break and join them at the same rate). And the dancing people model - closed room, people dancing with eachother, splitting and joining.

Wtf is the self ionisation of water

I thought it was pretty BS though because the question said "draw a galvanic cell and label the anode, cathode and electrolyte" - 2 marker

"Use your knowledge for some real stuff" is barely existent in chemistry (apart from calculations which is basically mechanical to most people). You can basically rote learn every subject except for maths. The only shocking question I've seen in the past papers was some question on the ozone...

Loool you could actually be bothered to type these all up. I reckon this year, industrials gonna have something big on the contact process, ie. extraction of sulfur and making H2SO4 I'm pretty sure there'll be something on how to make polyethylene -LDPE/HDPE and most of the time there'll be...

I'm rank 5th in my school and my school on average gets from 13-20ish band 6's in chem on average per year. I'm pretty sure i can score a band 6, but i'm not sure if I can achieve an HSC mark of 95. I think my school marks a bit harsh (we lose marks if we don't label like.. err the connecting...

Erm wth, I don't think you actually have to know the name of an actual detergent You just need to know their basic structures ie. anionic = /\/\/\/\/\/\/BENZENERING\sulfonate and remember their uses and properties too. I've finished the HSC papers from 2004-2011 and no they've never asked for...

I think its pretty easy to remember in comparison to the other topics. All you really need to know is the production of H2SO4, NaOH, detergents, a replacement for a shrinking resource, and the solvay process for making Na2CO3 and everything else just circles around these.

Looks to me like you've got cobalt with 6 ammonias and 3 nitrates. My lack of chemistry skills seems to entertain me... I love reading the ingredients in toothpaste and acting like I know them all.

I think it'd be hard to fill up all the lines if they give you say... 5-6 lines with 3 or 4 marks allocated. Photographic film doesn't tell you what type of radiation is present either which is a bummer. I seem to find the cloud chamber quite fascinating, there are some cool videos of it on...