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  1. ThatReallyReallyWeirdDude

    Chemistry Doubts: IGCSE Paper 3

    Giant Molecular/Macromolecular structure: This is a massive structure consisting purely of covalently bonded atoms. The large amount of strong bonds results in a hard structure with high m.p./b.p., and since it's covalent bonded it has some covalent properties e.g. doesn't conduct electricity...
  2. ThatReallyReallyWeirdDude

    IGCSE Chemistry Revision Guide | According to syllabus

    Again credit to @Pingu (@wooowooowoo) :D But thanks Nah I'm variant 1, I have my exam in four hours XD Pray for meh! Shouldn't have a problem, inshallah you did well (and all the others who took the exam already)
  3. ThatReallyReallyWeirdDude

    Physics paper 6 2012 + chemistry paper 2 2012 discussions

    I'm too boss for such primitive methods, I use Foxit reader which has inbuilt measuring tools :D
  4. ThatReallyReallyWeirdDude

    IGCSE Chemistry Revision Guide | According to syllabus

    I'm assuming that means you just had physics paper 62? I hope it was good ;) <Variant 1
  5. ThatReallyReallyWeirdDude

    Accounting Discussion

    No; sales would be understated and purchases would be understated too, leading to no net change. Percentage of gross profit to sales would decrease since the gross profit is the same but the sales is less Rate of Stock turnover = Cost of Sales/Average stock, so since purchases decreased, so does...
  6. ThatReallyReallyWeirdDude

    IGCSE Chemistry Revision Guide | According to syllabus

    Waait stop what about the C(n-1)H(2n-1)COOH thing? (Last post on page4!)
  7. ThatReallyReallyWeirdDude

    IGCSE Chemistry Revision Guide | According to syllabus

    He meant the GOOD grades which they get now due to reading this book (which I still havn't done xD)
  8. ThatReallyReallyWeirdDude

    IGCSE Chemistry Revision Guide | According to syllabus

    Hmm Could use: C(n-1)H(2n-1)COOH This way, if it's methanoic where n=1: C0H1COOH=HCOOH Works? Ethanoic Acid: C(2-1)H(4-1)COOH=CH3COOH Propanoic Acid: (n=3) C(3-1)H(6-1)COOH=C2H5COOH =CH3CH2COOH EDIT: I just made this now so test if it works before just using.
  9. ThatReallyReallyWeirdDude

    IGCSE Chemistry Revision Guide | According to syllabus

    lol I only did Sulphur & Reversible reactions xD Credit goes to wooowooowoo
  10. ThatReallyReallyWeirdDude

    Chemistry Doubts: IGCSE Paper 3

    Any -anoate is the salt of an acid, so you can automatically know what's from the acid and what's from alkali even if you forget. Sodium Ethanoate -> Ethanoate from Ethanoic Acid Methyl Nonanoate -> Nonanoate from Nonanoic Acid, Methyl thus from Methanol.
  11. ThatReallyReallyWeirdDude

    Chemistry Doubts: IGCSE Paper 3

    OH is from the ethanol and H is from the ethanoic acid. Carboxylic Acid group: -COO|H| Alcohol (Hydroxyl) group: -OH CH3CH2OH+CH3COOH->CH3COOCH3CH2+H2O (Ethyl Ethanoate)
  12. ThatReallyReallyWeirdDude

    Chemistry Doubts: IGCSE Paper 3

    It says the ore only contains sulphur, iron and copper and by law of conservation of mass, the masses of Fe, S and Cu should add up to total mass So mass of S = 13.8-4.8-4.2=4.8g Next we find the number of moles each mass contains. (Here's a revision of formulas...
  13. ThatReallyReallyWeirdDude

    XD It's worse when I DON'T Like you. XD I love your DP. It brings back memories.

    XD It's worse when I DON'T Like you. XD I love your DP. It brings back memories.
  14. ThatReallyReallyWeirdDude

    Accounting Discussion

    Oh! Thanks loads!
  15. ThatReallyReallyWeirdDude

    Accounting Discussion

    Purchases is not known as raw materials! Raw Materials only in manufacturing accounts!!! And things like cost of goods sold/cost of sales...really it's the same thing, there's no need to worry bout that, only major ones...long term liabilities are obviously non current :| It's up to you but...
  16. ThatReallyReallyWeirdDude

    Accounting Discussion

    ethics and role of information technology? I didn't see that in syllabus :| Pretty sure it's not with us.
  17. ThatReallyReallyWeirdDude

    Chemistry Doubts: IGCSE Paper 3

  18. ThatReallyReallyWeirdDude

    Accounting Discussion

    NOTE: There's now new terminologies you should at least know if not use yourself: Profit & Loss --àINCOME STATEMENT Debtors -àTRADE RECEIVABLES Creditors àTRADE PAYABLES Sales àREVENUE That's all I remember right now but if i remember something else, I'll post.
  19. ThatReallyReallyWeirdDude

    Chemistry Doubts: IGCSE Paper 3

    http://www.xtremepapers.com/community/threads/chemistry-paper-3-calculations.16660/#post-289840 Hope that helps. Also check link to the chemistry notes in my signature, may be useful too ;) Bah atm my chemistry notes aren't next to me. I'll get back to you. Addition Polymerization requires high...
  20. ThatReallyReallyWeirdDude

    Chemistry Doubts: IGCSE Paper 3

    You're welcome XD Is it right? Nevermind, imma sleep now.
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