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For our Depth Study (Module 7) we are required to choose and make an organic compound. I have decided to go for an ester called propyl ethanoate. For our report, there is an introduction section. The first two things we need to address is: 1) Date of first synthesis of the compound 2) The...

Good idea to ask your teacher for extra questions as they will always be happy to help. HSCNinja is a good place to find HSC questions although it is for the old syllabus. You can still find stuff like equilibrium and pH questions and probably more. Try and borrow a textbook from your school or...

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I wanted to know how much year 11 content we get tested on in our HSC. And when is the ideal time to revise the year 11 content. I do the following subjects: Maths 2U and 3U English Advanced & Extension 1 Chemistry Biology Japanese Beginners Planning to drop Extension English and...

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I'm having trouble with this question. Normally i would use auxiliary method but I'm having difficulty. Thanks in advance. (i) Express 2cosθ + 2cos(θ + π∕3) in the form Rcos (θ + α), where R > 0 and, 0 < α < π/2 (ii) Hence, or otherwise, solve 2cosθ + 2cos(θ + π∕3) = 3, for 0 < α < 2π

Question 9 I have no idea where to start. Question 10 i figured out how to get xcos0 but i dont know how to get ysin0. These are from cambridge 3u year 11 and theres no answers for these two questions at the back.