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6. So we have 5g of CO. We know that 43% of it is Carbon. By doing the calculations of 43% x 5, we get = 2.15g. And it also says the remaining is oxygen gas. Thus we can simly do 5-2.15 to get the amount of Oxygen. However, another way to do this question is to simply find 57% of 5g, since 43%...

Are there any other exams that BoS does?

lmfao this is dope

Any news for us NSWers?

Nah i think they reduce holiday as compensation

You could go onto desmos and mess around with the absolute function to graphically gain an understanding of it

Ngl, you probably don't need tutoring for bio, mainly becuase the whole course is very rote learning and a lot of memorisation. Your best bet is to just make notes in every class and revice through those notes the day before you have a bio class.

G) You should be able to solve part g, by using the same thing as part one. In this you have to find when N and D are seperated by more than two letters. You know how many can be formed when they are seperated by exactly two. Use the same way of answering part F) to find how many words form when...

F) So one way of having them would be N_ _ D _ _ _. where the _ are the other letters. You can have this pattern a total 4 times ( N_ _ D _ _ _ , _ N _ _ D _ _, _ _ N _ _ D _, _ _ _ N _ _ D) Then, N and D can be aranged 2! times, ND and DN. Also, the other letters can be arranged 5!. Thus the...

Yeah lol i kinda guess, but thats what i like about derivatives. Then again, cant really talk since i haven't done enough perms and combs to fully talk about it. Guess ill just have to do more. Then again, what is your favorite topic?

I done a few perms and combs questions, but just found the whole topic to be boring i guess. Like compared to derivativies which is fun do to, perms and combs is just... numbers. I mean maths is a lot of numbers but perms and combs is just numbers, you know?

What would you want to do in the future then? I always wanted to something in the science field, but nearly everyone says that its not really usefull as there are barely any jobs for it. The only other thing was research but like you said you need to be really high-performing.

Mmmm, what about the RACI chem quiz? I wanted to do one of the olympiads but after looking at the past papers, especially chemistry since I mainly just know balancing and the types of reactions and a some organic, but none of the calculations part of it, seems that I would barely know the answer...

Hey guys, year 11 right now, and I wanna know how difficult the olympaid is, for both chem and physics. I heard a bit that it is around HSC level, is that true?

How hard was it out of 10?

Like the above said, it's not a bad school, I would go if I were you and it'll be cool to see u in yr12

Mind if you send it to me aswell? Ty

Thanks a lot! As a yr 10, this is going to be really helpful especially for next years

So I was wondering if I should do replace bio for engineering studies. Right now my subjects are: - Maths EXT1 - English Adv - Chem - Physics - Bio/Engineering Studies - SLR The thing is that I'm going to drop bio/engineering studies in year 12 along with SLR to pick up maths EXT2. My teacher...

Could you send it to me aswell? Thanks!