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Some of the prelim is quite important such as what you listed plus understanding bonds and intermolecular forces, so taking it to the extreme: if you never listened to anything in year 11 (basically skipping year 11 Chem) and did year 12 chem straight away, it will probably affect your results...

I'd put it under books, but it doesn't really matter.

cos40 + cos50/cos50 is not equal to 2. Type it in a calculator and you get 1.766... Either the question is wrong or you typed something wrong.

Sulfuric acid is a strong oxidising agent. An oxidising agent is basically a substance that allows oxidation to occur by undergoing reduction itself. In dilute solutions, the hydrogen ion it produces acts as the oxidant for the active metals including and above lead in the activity series...

1. Yes, I would spend a few days focusing on one subject, then once you have completed that subject, move on to the other. Some people may have different opinions, but I like to keep my mindset on one subject rather than 3 or 4 at once. 2. Doing all your homework PLUS making sure all your...

secθ=3 1/secθ = 1/3 cosθ = 1/3 If you're not doing extension 1 maths, then the solution via general formula (the final answer 1729 posted) will probably not make sense to you. Depending on the domain, just solve θ like a normal trig equation. Assuming they only want the answer for the first...

His HSC grad year is 2019 so I didn't mention doing past HSC questions, but that will be very useful for Year 12. Most of the content you learn in physics and chemistry won't be directly tested in the HSC, so HSC past papers won't really help you in Year 11.

1. You should probably be doing all your homework, especially for maths, otherwise you fall behind the whole class easily and the stuff you learn next lesson may not make any sense to you 2. At my school, we get at least one exercise to do everyday, but the questions are chosen specifically for...

The subjects you listed only add up to 10 units, don't you need 12 for Year 11? Anyway, I recommend keeping engineering and wait to see how well you do in your first assessment task. Dropping to 10 units does give you quite a bit of extra time to study your other subjects, I mean the time you...

I'm a bit rusty with my legal knowledge, but I think legal responses refer to internal and external reviews, whereas non-legal responses are referring to informal measures such as turning to the media, M.P. (members of parliament), trade unions and interest groups. You probably don't need to...

All past HSC papers from 2001-2016 can be found in the NESA website: http://educationstandards.nsw.edu.au/wps/portal/nesa/11-12/Understanding-the-curriculum/resources/hsc-exam-papers

Both are streunuous in different ways. The content in chemistry is hard for some people in Year 11 but most find that it gets easier in Year 12... that is if you've understood the majority of the content in Year 11. Physics is just a rote learning course. There are barely any mathematical...

Q11: It is 2-bromo-2-chloro-1,1,1-trifluoroethane because you choose the name where the SUM is the LEAST. In this case, if you were to pick 1-bromo-1-chloro-2,2,2-trifluoroethane, the sum would be 1+1+2+2+2=8. If you choose D, it would be 2+2+1+1+1=7. Therefore, you would pick the latter...

An ATAR of over 90 with any subjects is always possible, the question is are you prepared to put a lot of time and work in achieving that goal? I don't do SOR or Geography so I can't talk much about that. Chemistry and physics are among the harder subjects that you're doing, and you may need...

Trial exams are basically an imitation of the actual HSC exams that your school writes to prepare you for the HSC, the type of questions and format of the exam will be very similar to the HSC and the time given for the exams will be the same as the HSC time limits. But unlike the HSC, trial...

In my school, our ranking for each subject is displayed in our school reports under each respective subject. I'm not sure if there's really any other way to determine your ranking if your school refuses to tell you.

I'm such an idiot, I just realised the direction of the arrow was labelled I -_-

It's the same idea with using a styrofoam cup or a beaker, that just really depends on how your teacher wants you to write up your procedure and what equipment he/she is looking for. However, using a styrofoam cup with insulated lids would be a better option in order to minimise heat lost to...

Sorry, not sure why a big part of my solution gets cut out after "will curve below y=sin^-1x for 0", tried editing it but it's not showing up, for me at least. Here's what's meant to be after it:

That's a tricky question. Nevertheless, I'll have a go at it. First of, I think it's going to be easier to determine domain and range from looking at the graph rather than using algebra. To draw the graph, first consider y=sin^-1x. The domain and range of sin^1x are -1<x<1 and -pi/2<y<pi/2...