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thanx alot

what type of radiation (a, b, g) does I-123 emmit?

hard water has Mg and Ca ions in it. u can use the lathering of soap to test for them=> more ions, less lathering

Co - 60

u need to know haloalkanes: Syllabus: -identify the origions of CFC's and halons in the atmosphere -identify and name examples (of isomers excluding geometrical and optical) of haloalkanes up to 8 carbon atoms

they did in bio, this year is the 50th annervisary of when watson, crick, frankiln, and wlikins discovered the structure of dna, it was worth 10 marks all up i think

i got a feeling a question like 'disscuss the advantages and dissadvantages of using ethanol as a fuel' will be in there due to all the comotion about it in the press in the last 6 or so months.

i thought it was basic solutions which AlO corrods??? correct me if im wrong

yep, this exam was too much like an english exam. hardly any knowledge needed and lotsa blabbering was about it.

yeah i kinda expected a question about watson, crick, wilkins, and franklin because of the 50 th anervisary

just wonderin what answers people got for this section, in particular 31 e)

i have a few teachers at my skool who r markers, they have a number at the front of their desk of the center number form their skool so they dont get any of their own students, as for other ppl they know im not sure

im just wonderin cos i always get confused, is there any way to remember when to use the different formulas?

um the movie 'wag the dog' relates good as it is about how a group of people from the government create a war on tv to cover up the presidents sex scandel before the election.

i think it might have something to do with GM foods cos it has been in the paper a fair bit in the last year??