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Hi all, does anyone do either of the above courses or related? If so, how do you find the course? And for eco/adv science specifically, are eco and adv science that much intertwined, as I'm worried they are quite contrasting to the point where I should just drop the one I like less later on...

I was thinking of taking up tutoring next yr, I did maths adv (and ext 1) and eng adv. Do you guys think it's suitable to be open to tutoring standard (maths and/or eng) as well? (I've never learnt the content for them so that's why I'm unsure, so should I also go through some textbook or...

Could someone please upload their working Thank you!

For part B, I'm confused of the two methods of solving for moles avaliable in the question: the first is the way they show in the answers = using c times v second way i thought of is getting mass of HCl and dividing by its MM, and doing same for NaOH, and finding limiting reagent You end up...

From 2022 hsc, im sure ppl in the past have prob asked this The final answer they give is ...x- pi/3, but the Q wants x+... Did they write this wrong or something or?

Hi all, when writing chemical equations, which need physical states of the compounds, for the organic molecules that are not gaseous but liquid OR aqueous, do we state them as liquid or aqeuous? e.g. carboxylic acids, alcohols, esters etc.

Can anionic detergents also form scum/precipitate when reacted with hard water? (Or does this only occur with soap) Thanks

These are some isotopes for mass spec, do you guys think its worth memorising the highlighted ones or all or ? Thanks!

(from the James Ruse 2023 3 u paper) (answers C btw) Do you guys think this is necessary to know, the working involves using the below equation which i never learnt

Hi all, ^ would you do it based on the BOP (CA, NPY) or based on the measures of external stability: Thanks!

Hi all, what's the reasoning behind why the solutions isn't (tan x)^2 - y^2? Thank you!

How does the 'consumption, savings, investment' channel of the transmission mech differ from the 'cash flow' channel? (because from my reading, it sounds like cash flow also just influences people's savings and spending) Thanks!

Is it necessary to write the first line when concluding (because I know they often give marks for a conclusion) OR will just writing the last line suffice? Thank you!

i heard if you draw a graph in pencil you need to go over it again in pen, is that true for hsc maths ext 1

hi all, do we need to know all/any/one of the many types of precipitation titration methods: e.g.mohr's, volhard's, fajan's Thanks

What are all the different cations flame test colours we need to memorise? (different textbooks and websites vary) Thanks!

I've learned esters & carbo acids are funct group isomers, so are cycloalkanes & alkenes, ketones & aldehydes; and alcohols & ethers, but ethers isn't really in the syllabus range yet they do count as funct group isomers, so if there's a question on the no. of funct isomers of an alcohol...

Answer is D How would you solve this question using calculations (of course just by looking at it it's D cause basic pH, but im curious about calc) Thanks

Could anyone show me the working out to this answer is C Thank you!

How would you answer this Q? Thank you