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  1. trecex1

    Does prelim knowledge get tested in HSC exams?

    Only for maths. For sciences I haven't seen any questions on prelim content other than basic skills (e.g in chem: chemical equations, electron diagrams etc). Also some prelim content is relearnt anyway.
  2. trecex1

    What has everyone done this holidays?

    http://community.boredofstudies.org/1178/general-discussion-2017-hsc/359340/what-has-everyone-done-holidays.html
  3. trecex1

    Simple complex number question

    Probably because sqrt(x) * sqrt(y) =sqrt(xy) only works when x,y>0
  4. trecex1

    Worst 2 units?

    Ext history scaling isn't really high Classical greek/latin continuers/extension scale as well as the other sciences.
  5. trecex1

    EMF involving H+ ions?

    It's not but you can look it up - http://www.ed.gov.nl.ca/edu/k12/evaluation/chem3202/standardreductionpotentials.pdf yes
  6. trecex1

    EMF involving H+ ions?

    What do you mean disregard? That's part of the half reaction. The reduction potential of MnO2 + 4H+ + 2e- → Mn2+ + 2H2O is 1.22 V The potential for 2I- → I2 + 2e- is -0.54 V (assuming it's solid otherwise you won't get your answer) If you add these you get 0.68 V
  7. trecex1

    EMF involving H+ ions?

    That second equation is on the standard reduction potentials. MnO2 is reduced, I- is oxidised so just calculate it as usual.
  8. trecex1

    E naught or E theta?

    Doesn't matter at all. Only thing that matters is you get the size correct.
  9. trecex1

    Buying exam responses back

    Has anyone confirmed with bostes whether or not you can lose marks if you buy a recheck?
  10. trecex1

    Unofficial School ranking list (SMH)

    Sydney girls at 13th is surprising
  11. trecex1

    Share your 2016 HSC results here

    Well done! That's an amazing English mark.
  12. trecex1

    Share your 2016 HSC results here

    Just got mine (accelerated subs) Maths 2U: 99 Maths 3U: 49 Chemistry : 96 Congrats everyone!
  13. trecex1

    Six people topped the state this year

    It is definitely 100 raw, considering it's 2u and usually most if not all 20 state rankers get 100 raw.
  14. trecex1

    A few questions - state ranks, the newspaper for band 6s and allrounders

    1. "The 2016 HSC merit lists will be published progressively on the BOSTES website from Wednesday 14 December: First in Course – students who come first in a course (provided their result is also in the top band) Top Achievers– students in the top places in each course (provided their result is...
  15. trecex1

    HSC Physics Marathon 2017

    y=25tsin40-4.9t^2 x= 25tcos40 t= 3.28s Range = 62.8m
  16. trecex1

    Discovery- Related Text

    The tempest is a prescribed, you can't use that as your related text btw.
  17. trecex1

    2017ers Chit-Chat Thread

    haha finished all my exams for the year feelsgreatman.
  18. trecex1

    Complex Number Question

    |z1| |z2| |z1+z2| are length of three sides of a triangle. The length of one side of a triangle is greater than or equal to the difference of the other two. Equality when the points 0,z1,z2 are collinear.
  19. trecex1

    Chemistry paper thoughts

    Yeah if you did papers from before 2010 or something they frequently used this notation to show cells. The question didn't say which combination of Q and P will give highest voltage, it just said which cell.
  20. trecex1

    Chemistry paper thoughts

    No that's not correct, if you read it carefully it says for that particular cell it can be expressed in that notation (as that cell notation is no longer taught in the syllabus so students may not be familiar). Then it says in which of the following cells will produce the max voltage. The...
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