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99 in general scales down to 90. Just think about that. That's more then enough to see why.

Hahahahah :p

I also couldn't find specific dot points targeting where and how hydrogen and nitrogen is extracted.

Re: HSC 2014 4U Marathon...

A student carried out an investigation to analyse lawn fertiliser. The student weighed out 1.00 g of fertiliser containing 24.0 % sulfur (S) and dissolved it in water. 100 mL of 0.20 mol/L barium chloride solution was then added and a precipitate formed. (a) Calculate the theoretical...

You barely provide answers! You answer your question (bold) I want to see how you would do it :D

Yes but they also have accompanying diagrams

I personally think not many people remember the diagrams for the initiation, propagation and termination steps. The peroxide initiator first, and then splits forming a free radical etc etc. Maybe im wrong

yeap :p

What i have written i think would get 3/3, however if it was out of 4 or 5, I would probably bullshit more on the presence of carbon monoxide and sulfur and blab on about how companies want to profit and maximise their production and also the nitrogen to hydrogen ratio. That might reach a 5 if...

hahaha dude imagine that bloke was ranked 1st internally. Crazy!

4-5 marks, probably not, if they do, that means BOS really wants to f*** with us, however max 3 marks ive seen.

Someone on BOS was not ranked first, however state ranked in his subject.

I have a brilliant question, it would almost certainly put off most of the state. Explain the process of addition polymerisation with diagrams depicting the three main steps that occur.

Catalytic cracking is 500 What about thermal?

I'm not sure, they seem very similar. Anyways to answer first dot point. John Smith is an analytical chemist who works in the Haber industry monitoring the contents of the reaction vessel. The chemical principle that he employs is that of solubility where he uses gas liquid chromatography to...

It was over pm, he messages me asking for advice, and obviously i was not going to lie and tell him to do 4u because he sucks at 3u, and he gets pissed off hahahaha It was over pm not in the threads

Through non-renewable resources, ethylene is first formed through catalytic cracking where large alkane molecules with 15-25 carbon atoms are split into two smaller molecules, one ethylene and the other another alkane. OR ethylene can be produced through thermal cracking where alkanes are mixed...

HAHAHAHA no. Today some kid told me to "fuck a donkey" because apparently i was mean for telling him not to do 4u. Interesting people you meet on BOS :p

You and dunjaa are going to state rank.