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∆H(mol) are they supposed to be expressed as a negative value? or does the definition come with the exothermic nature, and don't need the negative sign?

Yeah... Like staring at a bus? You're digging yourself a hole :P

In As You Like It specifically, in Act 1 Scene 2 it is mostly prose.. rather than iambic pentameter form. What is the purpose of this? When Orlando is giving his soliloquy (lines 145-152) especially. I want to use this quote but I can't think of why it uses prose form...

The world cup is only once every 4 years? WELL YOUR HSC IS ONCE IN YOUR LIFETIME! No pressure :p just telling you the facts

I bet you're enjoying the little attention you're getting here. But seriously though, get a life.

as titled. Thankssss

List ways in which particle accelerators have helped advance our knowledge of matter. So how exactly did particle accelerators help us gain a wider understanding of the structure of the atom and identify the subatomic particles? I can't find much information on this. Please help me out...

What were your percentile in the UMAT and scores in each section? What year did you sit it?

Regarding how hard chem & phys are... as long as you do your homework and keep up to date with everything, you should be fine. But HSC physics gets very conceptual and if your teacher isn't very good, it will be hard... it's important to stay on top of things.

what are UMAT scores of 160+ and 180+ equate to in terms of percentiles? just roughly...

Just wondering, where can I get info for the last few years' cut-offs for dentistry at Griffith and Queensland unis? both ATAR/UAI and UMAT...

right. sorry! To determine the sulfate concentration in a liquid fertiliser, an analyst first diluted 50 mL of the solution to 250 mL, pipetted out 25 mL of the dilute solution, added 200 mL water to it then precipitated the sulfate with barium nitrate solution. The ppt was filtered...

from conquering chemistry pate 224, question 31 how do you calculate the percentage of sulfate?? I took mass of ppt as 0.727 after averaging 3 closest values and got mass of sulfate. How do you calculate the percentage when all you're given is the volume of the original sample (50mL)?

thanks to both of you! about the air bubbles in the burette and pipette, aren't they built to count for those bubbles?

What are some sources of error in the extremely accurate quantitative analysis of titration? Other than incompetency please ><" Also, what's the difference between reliability and accuracy? How do you relate these terms to titration? Thanks! Any help appreciated :)

I'm recently into BoB, IYAZ, the Last Goodnight and other RnB/pop/rock male singers... Who are some other similar artists? I'm looking for mainstream/not-so-mainstream/underground and all sorts of easy-to-listen-to songs. Lovin' BoB's voice right now. My ipod is in desperate need of an...

ahhh thank you thank you I realised I made the classic mistake of thinkng my q was a 9 somewhere in my working. I'll try the 2nd part now :)

Yeah I understand that. What I can't get is the algebraic simplification when you sub x=√(-q) into the polynomial...; The actual problem is that I didn't get the first part right; the polynomial is apparently wrong. But I looked over my working a couple of times and couldn't find an error...

Another question: f(x) = x^3 - 3px^2 + 4q p and q are positive real constants. show that f(x)=0 has three distinct real roots if and only if p^3 > q can someone show me the full working please? ________________________________________ I got this now. Nevermind ;P

can you show me the working please? I still can't get it... the subbing in part :(