Search results

re: HSC Chemistry Marathon Archive Weighed out 1.0 g of fertiliser into a beaker, added dilute hydrochloric acid solution and then stirred. 50.0 mL of 0.350 mol L-1 barium chloride solution was then added. A white precipitate of barium sulfate formed. Washed the precipitate, filtered it, left...

For Harder MX!, I really enjoy: http://www.harderhscmaths.com/ A collection of some of the best Qs from all types of 4U exams

IMO, it's the most relevant for Ext 1 and 2. And I agree with David

This is not the recommended way to write the polymerisation process Instead, n(HO–C6H10O4–OH) → H–(O–C6H10O4)n–OH + (n – 1)H2O

Aluminium oxide is impervious to water, so it doesn't react

Define conservation of momentum briefly, Newton's third law F1=-F2 is appropriate in this case. Let F1=gas propulsion, F2=Force acting on rocket. From F=ma, we know that acc increases as m decreases and F remains constant (for HSC sake). Clearly, momentum is conserved. Forces experienced can be...

Im in, lets do this

The bottom cohort will not affect you much (assuming the top 4 are getting a band 6 performance) If they get 80s, then your moderated will likely lie in the mid-80s, and your overall HSC will probably scrape you a band 6 at best

The moderation process takes into account the differences between your school assessment marks and re-distributes them in the ranking order (with consideration of the mark differences). Assuming the top 4 gets 90 exam mark and you get 95 exam mark. Your moderated will be roughly ~91 or 2. Then...

He saw DrSoccerball and was like "nahhh, he aint gonna make it" - so he didnt post any hard ones ahahaha jks :D

The only other job is to ensure the connections to both the rotor and external circuit is not tangled

Time means nothing if you don't get shet done Instead of allocating x amount of time to maths, determine what topics, specific concepts, materials etc. you need to gather and complete THIS WEEK A yearly plan almost never works imo, start small and you WILL get to the top gl buddy

Dont be disheartened OP, while ofc it will affect your atar, your ranks should not drastically change (as there are probably a bunch of yolo peeps in ur class)

I have the following: removed Trading for any 2015 papers from following: removed (Photo uploads are taking longer than expected...)

I dont think classical (and perhaps even quantum) physics apply in a region of infinite density, so Einstein's theory can be ruled out, gg

Re: HSC 2015 4U Marathon Let p+2 = a , q+2 =b r+2=c Therefore (p+2) + (q+2) + (r+2) > 3 cuberoot ((P+2)(Q+2)(r+2)) Simplifying: p+q+r > 6 Now p+q+r > 3 cuberoot (pqr) Rearranging, pqr < (P+q+r/3)^3 therefore, pqr < (6/2)^3 pqr < 8 Does this work? Edit: nvm, i see peeps have done this and i...

Release? It's more like "produce/create"

"Due to quantum physics/phenomenon/mechanics"

lol, I cringe when i see HSC write "due to quantum physics..."

Its alright diana, A LOT of peeps are in the same boat as you, I personally lost motivation up until this time last year (I had no clue what school was about and failed most of my subjects as well). So whilst it's unlikely that you'll ace the HSC in what little time you have left, you can...