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  1. K

    Mathematics Marathon

    cube root(27x^27)
  2. K

    Hsc Marathon 2009 - Chemistry

    just anything on the standards potential page which we dont have to remember for the exam use an equation to show the formation of a condensation polymer, im really stuck on this one :S
  3. K

    Food Technology Marathon (question and answer)

    is your recent development GM foods?
  4. K

    Food Technology Marathon (question and answer)

    just curious, you are asking questions out of the hsc syllabus right?
  5. K

    2009 Economics Marathon

    distinguish between the net income account and the financial account
  6. K

    Food Technology Marathon (question and answer)

    -exclusion of air -removal of microorganisms -use of high temperatures - low temps - drying -chemical preservatives -irradiation and that question isnt in the syllabus? when does storage and food manufacture take place?
  7. K

    2009 Economics Marathon

    yeah it is, wana start it back up again?
  8. K

    Food Technology Marathon (question and answer)

    food standards code, trade practises act 1974, NSW trade measurement act 1989 what are the 7 main methods used for preserving foods
  9. K

    question

    4. Critically analyse the impact of bilateral and regional free trade agreements on the global economy. any help would be great :)
  10. K

    Hsc Marathon 2009 - Chemistry

    polystyrene properties- hard, transparen. polystyrene foam is light and a good thermal insulator uses-food containers, packaging, apple trays, TV cabinets, CD and casette cases and plastic cups use an equation to show a substitution reaction
  11. K

    Hsc Marathon 2009 - Chemistry

    -rise burette with small amount of the solution of known concentration and discard -overfill burette with this known solution and run the excess out. Solution level should be on 0. -use pipette to measure a given volume of the solution of unknown concentration into a flask and place it under the...
  12. K

    Hsc Marathon 2009 - Chemistry

    there are no futhur naturally occuring elements waiting to be discovered. Scientists are always trying to make new artificial elements which will be radioactive and remain in existance for a very short time, or may try and make artifical elements already invented by new means. So any of the...
  13. K

    Food Technology Marathon (question and answer)

    answers i was reffering to were -physical changes -chemical reactions -activity of enzymes -attack by rodents or insects -activity of microbes hmm thats a hard one -environmental issues (clean air and waters act) -pricing issues, (trade practices act) -labelling requirements and their...
  14. K

    Food Technology Marathon (question and answer)

    assess hazards, identify CCPs, set standards for CCPs, monitor CCPs, lay down procedures for dealing with problems, keep accurate records of tests done at CCPs, verification what are causes of spoilage?
  15. K

    Food Technology Marathon (question and answer)

    -it is Aus's largest manufacturing sector -contributes 25% of all exports -exports a large quantity of raw materials and processed foods -employes 8-9% of all working people -largest employer in Aus -food service and catering has expanded as a result of Aus's booming tourism industry not quite...
  16. K

    what does everyone think of the NEW excel?

    i know this sounds horrible but thats good to hear, cause i see you do cosmology and did accelerated maths and all the really like super smart people on here seem to have endless textbooks and go to tutors and lectures and i was always under the impression the kids with all the resources are the...
  17. K

    Hsc Marathon 2009 - Chemistry

    oh and while im here does anyone know how i can get chem contexts 2 answers or the cd, can you download it somewhere etc?
  18. K

    Hsc Marathon 2009 - Chemistry

    oxidation states give an indication of electron transfer in redox reactions with oxidation being an increase in oxidation state and reduction a decrease in oxidation state. my question is above
  19. K

    Hsc Marathon 2009 - Chemistry

    biopol, it is produced industrially by bacteria growing in tanks with a carbon-based food source. The polymer is then isolated and purified. Recently attempts to produce the polymer have used genetic engineering. Advantages of this are faster growth, better yields, easier recovery and production...
  20. K

    Hsc Marathon 2009 - Chemistry

    You bet i am :)
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