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but mother tastes bad D:

na its not that, its just that i become sleepy if i concentrate for a period of time :(

its for maths lol, dude even doing a few hours of homework tires my brain out and makes me sleepy :( i slept 4 hours just this afternoon, even tho i only woke up at 10 today :(

Re: HSC 2013 4U Marathon please tell me how the hell do you rmbr these stuff

yea pretty much lol. what i meant was that if i use lots of energy in those 4u lectures, i'll be really tired and sleepy for my tutor lectures which are more important imo

it starts at 4:30 lol and goes for 2 hrs, and it will be on every monday, wednesday and friday starting from january 7th :(

dunno lol cos i have tutor right after those times so :/ i might just fall asleep in tutor if i attend the 4u course haha

yep he sure did

lol they will only cover 1 topic per day rite

dunno lol no idea on what any of those topics talkin abt

yea maybe lol

alright thanks i might come lol :D

nice will it be suitable for students who havent started the 4u course yet but undertaking the 3u course atm?

ohh yea it does make sense :) thanks brah :D

thanks des :) why though? i thought moles were just a number of atoms. so shouldnt the number of aluminium atoms be lower than the atoms of chlorine and aluminium combined?

k got another question lol for b, I don't really know how to do it, so heres my approach: 0.374 / 4 = 0.935 (amount of aluminium in that compound) 0.935 / 27 = 0.0346 (number of moles for aluminium) The answer should be 2.8 x 10^-3 and I've no idea how to get that lol Thanks :D

oh wow im a tard arent i LOL thanks brah :D

woops wrong category, soz modss

Sup, So i got a question on moles for chem For question b) I did 0.037 times (40+32) and got 2.664, but the answer says its wrong - should be 5... So I guess my logic of approach to this question is wrong. Here's my logic: 1 mole of calcium = 40 grams 1 mole of sulfur = 32 grams If I...

i honestly think self studying math is impossible, so tutor is a necessity. cambridge textbook is good for 3u maths conquering chemistry is the main book ppl use for chem as for economics, idk lol