Recent content by punki_pixi

if i got 3 band 6s and a band e4 in ext1math which counts for two units, then got 3 band e3s am i elligible for any special award?? i want one, lol.

YEAH awesoma power!!! *MR SPARKLE* :D GO for it man - if u get rejected cry and move on. No fear!

About the accuracy vs reliability thing, in the Success One Chemistry book one of the questions said how would you improve the accuracy of the experiment and the answer was to use repetition. These people write papers and mark them so why would they say that if the answer to the multiple choice...

So if I said you add HCl and looked for a ppt if lead was present do you think that would earn at least one mark?

Yeh I was happy with this test overall as well. I came out feeling better than I did for any other exam. I know i've definitely lost some marks and I'm sure that there were answers without enough detail but who actually aims for 100%? I want a band 6 and I'll be happy.

Yeh that makes sense, thanks for clearing it up :)

Yeh but I thought water in lakes and rivers and stuff is slightly acidic due to the CO2 in the atmosphere and as its not really pure water. But yeh maybe I was looking for a trick in the question that wasn't actually there. And the limestone I thought made the water more basic, ie. higher pH...

ok, one more post then I'll study... For question 14 I couldn't remember much about dissolved oxygen or oxygen demand so I went by pH. Isn't the normal pH of water around 5.2? I remembered something like that cos it surprised me it was that low, or I could be making things up in my head. Anyways...

Oops... well i lost a mark on the buffer question. I was pretty confident on the multiple choice at first but now I know I've got a few wrong now. You never really know how you went because its so easy to make simple mistakes and they try to trick you on purpose.. i usually manage to go pretty...

oh no.. its coming back to me now but i could never remember those tests. I said to add HCl and PbCl2 ppt would form but I didn't think it would be right. I got desperate and wrote that if its in trace amounts AAS would be needed... lol thats 2 marks gone.

What was the test for the lead ion in the water sample question?

For 1 i had B. I was going to put D because it said isotope and that has different number of neutrons than the normal atom doesnt it? and I was thinking the number of electrons equals number of protons. But it could be an ion couldn't it? Well it also said what condition produces... and if there...

Glad u liked it kt.. I cant say the same though. It was horrible. I couldn't fit that pic into any story i'd thought of and ended up with some crap that also finished mid sentence with barely any plot or point. For the essay I said that the provided text goes against the idea of crime...