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it depends on the reactivity of the metals that have been added

i used graphcalc before. u could change the scale on the axes, which can be helpful sometimes, but it doesnt have the more advanced options

hmm... oh well.. i think i'll use it to check things that dont involve logs then

it doesnt really specify in the syllabus, but should we be prepared for a question that asks us to talk about the consequences of a high CAD?

having an assessment during the trial is stupid. it gets in the way of us preparing for the trials, which are more important than one task. but i dont think i can do anything about it now...

wow.. it can integrate for u.. i havent seen that b4 i'll use it to check answers from now on

this is quite good in drawing graphs.. thanx

i got an english assessment task DURING the trials (does that count?). no fair :( apart from that, im free to study for the next few weeks

lucky u anyway, my trials r in weeks 3 and 4. i think chem is in the first week. ive still got time to study...

wat exactly will happen if you ate one which contained that contaminant?

dont know wat u mean by the first question... as for Q2, Na2CO3 is a base, and will react with the acid in the upper ester layer. the water formed from neutralisation, along with other chemicals in the bottom layer, would then be separated from the top layer. correct me if im wrong

are there any good movies coming out soon?

oh yeh.. forgot about that

yeh infrared does not have enough energy to make the electrons move to the conduction band. so no current would be detected

u should talk about what the government is trying to do with this budget to improve the economy and economic acticity, what they did to try to achieve this, and the actual impacts on the economy and society. you might want to evaluate the impacts of the budget as well

does anyone know where to get any good online graphing calculators? which one is the best to use to check the more complex graphs?

yeh thats right the higher the frequency, the higher the energy. infrared does not have enough energy to make the electrons be emitted from the surface of the cell. increasing the intensity wouldnt do anything (coz its infrared). But if it was ultraviolet light, and electrons were being...

my old science teacher used to say "o...k..." all the time. he said it really really slowly when he tried to say something different

we did the same, except it was connected to a CRO. we could see that the current was AC coz the wave was both +ve and -ve (sorta like a sine curve)

the syllabus dotpoint i think relates to this is: - deduce the ions present in a sample from the results of tests so they could give us a table of results of reactions between one unknown and 3 known solutions, and ask wat the ion is, rite? then they could ask us to use that answer to say...