Recent content by xvelidras

You might want to confirm with your teacher on that one, whether it will or will not be a disadvantage, since you cant really interrelate those two cells. We were specifically told to do something that could relate with one another in terms of uses. e.g. Lead-Acid + Vanadium, Dry +...

Technically speaking, the catalyst in hydration of ethene is the H+ in the acid. Hence industrially, the use of dilute phosphoric acid, and in the laboratory, dilute sulfuric acid. H+ is required because ethene and water will not readily attack each other, and hence will NOT react to form...

Following the advice of our vice-principal/UAI calculator, if your extension is alot better than your advanced, then it will count. If they're similar, then the likelihood of ext. counting before your advanced is slim to none. So, if english isn't your forte and your ext. marks are only slightly...

First of all, corrections: Common name: styrene Systematic name: ethenylbenzene/phenylethene your preference, personally, i chose phenylethene =P 'attracting many electronegative elements' I don't think you would have been taught that, and any book utilising that phrase should be burnt! But...

When did we start being on top? i believe it was somewhere around '95, when we took Syd Grammar's Place When will we be knocked off? Since not this year, not for many years to come. Ruse '05 is/was the dumbest year. Ruse '06 is brilliant, comparable to Ruse '03 and '04 Who will knock us off...

phlogiston is uber =D

Terry Lee is the tops for 4u =) Highly recommended. He's also avaliable at Pre-Uni Strathfield, but unless you have a scholarship there, you should go to his bankstown classes

I doubt a syllabus change is likely. As for the excel books, the biology ones are quite good. I wouldn't bother with excel chemistry, its a disgraceful study guide, the macquarie revision guide for chemistry is ALOT better. Not particularly sure abt the rest of the excel books Most of the...

Wouldn't that have been the case even before they reduced the places? Unless, you forgot to do the STAT. XD.

Doesn't matter, they're quite similar =P. One of my friends insists on using Zumdahl because apparently its layout is better. As for me, Silberberg happened to be the easier one to obtain.

No, you're not. the H2O and H+ are required for the reaction to proceed. EXT: There is an alternative soln: MnO4^- + 4H+ + 3e- --> MnO2 + 2H2O is only applicable in acidic solns. We may convert this equation for basic solns by adding OH- to both sides MnO4^- + 4H+ + 4OH- + 3e- -->...

Though it may be true in the reduction of MnO4- to MnO2, the oxygen's oxidation number does not change, it is NOT a spectator ion, since MnO4- and MnO2 are individual compounds that will not dissociate in aqueous soln (unlike NaCl for e.g. in which components may be treated separately) they must...

nah, all my knowledge comes from the ramblings of my chem-obsessed friends.. i think one of them went to ACHO

If you copied it from a website you can't totally sure of its reliability =P. Checked Silberberg's Chemistry; The Molecular Nature of Matter and Change, 3rd ed, p.g 396 "The 2s and all the three 2p orbitals of C are mixed to form 4 sp3 hybrids. Carbon's four valence electrons half-fill the...

Because you haven't actually experienced St. Johns. Its a horrible college, bruce hall and ursula are alot better.