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  1. STBAccuracy

    BoS meet up

    I'd love to come again
  2. STBAccuracy

    No way in a BoS mod's car

    No way in a BoS mod's car
  3. STBAccuracy

    2023 ATAR/HSC Marks

    Rank 4 SDD woooooo:music::music::music::music:
  4. STBAccuracy

    2023 ATAR/HSC Marks

    I'm hoping for it
  5. STBAccuracy

    2023 ATAR/HSC Marks

    Happy with my marks, band 6 in everything but english lol. 99 in software :music::music:
  6. STBAccuracy

    BoS meet up

    I'd love to come!
  7. STBAccuracy

    how do do this chem q

    I did a bit of maths for this Q...
  8. STBAccuracy

    I dont understand the working out in the first line

    I've attached some working, hmu if there are still any outstanding issues.
  9. STBAccuracy

    Good luck '23 guys you got this

    I can't wait to not worry about King Richard III and creative writing after this Thursday! :music: also its been a year but @Bob99 did you get a band 6 in chem?
  10. STBAccuracy

    EBNF and Railroad Diagrams

    I only did it for the sake of clarity and demonstration. I wrote digital notes so prefer the use of bold, italics, underline, and yellow highlighting.
  11. STBAccuracy

    EBNF and Railroad Diagrams

    I drew the railroad for the example above. Remember that railroad diagrams uses lines to indicate the flow of syntax and repetition (the {0 or more repetitions} or [optional part]). If you need any more clarifications or help let me know!
  12. STBAccuracy

    can someone please explain complexation

    The syllabus states we need to know complexation reactions to determine the presence of 8 cations. barium (Ba2+), calcium (Ca2+), magnesium (Mg2+), lead(II) (Pb2+), silver ion (Ag+), copper(II) (Cu2+), iron(II) (Fe2+), iron(III) (Fe3+) The one that I remember is the Iron (III) thiocyanate...
  13. STBAccuracy

    can someone please explain complexation

    I found this in the Pearson Chem textbook (dm me if you need a copy): Transition metal ions are small and highly charged. This high charged density results in an ability to strongly attract anions/small polar molecules (ligands), forming a complex ion. The process of ligands forming an...
  14. STBAccuracy

    EBNF and Railroad Diagrams

    If you need further explanations on any of the other symbols of EBNF or help on questions let me know! I'll try write something similar for railroad diagrams later today.
  15. STBAccuracy

    EBNF and Railroad Diagrams

    I'll try explain EBNF here, Its basically the text version of Railroad to explain the syntax of a programming language (most HSC questions on EBNF would be to either interpret EBNF or translate given code into EBNF). I'll run an example and indicate what each symbol means...
  16. STBAccuracy

    AAS question help

    B was the correct solution, A is the mass of the Copper in the solid and is not the total mass of solid (I forgot the mass of the carbonate lol)
  17. STBAccuracy

    AAS question help

    This is my working, with it getting A as a solution.
  18. STBAccuracy

    AAS question help

    Was the solution A?
  19. STBAccuracy

    Caringbah HS 2023 Physics Trial

    Test includes content from Mod 5-7 and all of IQ 1 and part of IQ 3 of Mod 8. Parts of Mod 8 IQ 3 includes: assess the limitations of the Rutherford and Bohr atomic models investigate the line emission spectra to examine the Balmer series in hydrogen relate qualitatively and quantitatively the...
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