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The grade average for my last maths extension test was 48% and only around 20-25 people got above 40 (the test was out of 54). The range of marks for the exam was insane though, there were people who got 10 and then there were people who got over 50. The test was very difficult, especially in an...

As stated before: Na2CO3 + Cu(NO3)2 ---> CuCO3 + 2NaNO3 n(Na2CO3)= 1.35/105.99 = 0.0127 moles n(Cu(NO3)2)=1.35/187.57 =0.007197 Therefore Cu(NO3)2 is the limiting reagent i.e. Copper nitrate will run out first in the reaction and thus no more product would...

Technically the maximum number of electrons per shell is 2n^2 however with the NSW syllabus you generally get taught that aside from the first shell the maximum number of electrons in the shells in 8 despite this being technically incorrect; however having 8 follows the octet rule and thus...

I was going to do both but then decided to do 3U maths so I only do Modern History. I find the mindset that I use in Modern History much more interesting because the historical logic that you apply is very analytical while Ancient History includes more inferences (purely for the fact that there...

Would your school even allow you to do 10 units if you plan on doing 4U English? I know that at some schools (including my own) it is recommended that if you are taking extensions (especially subjects like 4U English and maths) that you have at least one back-up unit in case you decide to drop...

A polar bond is a bond where there is an uneven distribution of electrons (due to the differing electronegativities of the atoms involved). E.g. A H-Cl bond is polar as chlorine is more electronegative than hydrogen. A polar molecule is one that contains polar bonds and has a net dipole, this...

Re: Year 11 Wokshops Has anyone gone to the English Advanced workshop at Alpha-Omega? Some of my friends are going and I don't know if I should join them. The main issue is the fact that I'm not naive enough to believe that they will be looking at the texts that I need to study for my exams and...

If there was no scaling then everyone would do the 'easier' subjects. E.g. Is it fair that a person who does General Mathematics should get a higher maths mark than someone who does 4U Mathematics with this difference only being due to the comparative difficulty of the subjects. I.e. It is much...

I would recommend for you to do Modern History. I currently do both English Extension I and Modern History and find that it is not difficult to manage the workload. I have a friend who does Modern History, Ancient History, Legal Studies, Society and Culture and English Extension I so Modern...

Note the part where it says combined. If both the parents are working (and generally by secondary school if not by primary school most parents are) then $48,500 (or so) per working parent is by no means an extremely large salary especially with tax, mortgage repayments (taking into account...

Can you even say 'Ich kenne Deutsch'? Aren't you supposed to say 'Ich kann Deutsch' because kennen is used for nouns, people etc. Well that's what my German teacher said; wissen for intellectual and abstract things, kennen for nouns, people etc. and können for languages. Correct me if I'm wrong...

You do realise that this initiative will be means tested. As stated in the Herald Sun: Read the whole article here is you want: http://www.news.com.au/heraldsun/story/0,21985,23694276-5012911,00.html These days a combined income of $97,845 isn't exactly in the realms of luxury. Essentially...

It would have been impossible to put thermal decomposition, there simply weren't enough boxes. I think I had one left after I put decomposition. A corrosion reaction can be seen as: Metal + Oxygen Gas---> Metal Oxide Again this reaction requires Oxygen to be one of the reactants. The reaction...

I seem to be making more and more stupid mistakes in these papers. I know I got at least four questions wrong...Anyway I got 8:15 for the ratio question. Because you figure out that b=4/5 c and 3/2 a and thus a/c is 8/15 thus the ratio is 8:15. The area of the triangle was 12 cm^2 so you could...

For the combustion/decomposition question the answer in all probablity is more likely to be decomposition. In the reaction the reaction wasn't exothermic (releases energy) but endothermic (required energy to occur). Combustion reactions are usually (if not always) exothermic. For it to be a...

I found this test incredibly hard, even harder than my trial because it was so ambiguous. It didn't really depend on essentially much content knowledge and was just so poorly worded and poorly planned out in cases. I would say it would have to be 'Decomposition' because for it to combustion not...

This is a survey on people’s opinions of drug use and awareness campaigns. It’s for a major PDHPE assessment task. It can be answered here or at http://pub7.bravenet.com/vote/vote.php?usernum=542168482&cpv=2 Thanks. 1 What do you believe would be the most effective advocacy method against...

I want to go down to 12 units in Year 12 while picking up another Extension so I'd probably drop a history (probably Ancient). I'm still wondering whether Extension 2 English or Extension History would be more preferable but I'll worry about it next year when I see how I am going in each...

I picked the following subjects: 2 Unit Advanced English 1 Unit English Extension 2 Unit Modern History 2 Unit Chemistry 2 Unit German Continuers 2 Unit Legal Studies 2 Unit Ancient History I'm a little uneasy about dropping maths as basically my entire school is doing maths (maybe excluding...