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I'm currently having a serious issue with (re)learning galvanic cells. From the activity series, we know that a more active metal will displace a less active metal in solution, turning from an element into an ion + free electrons. We know that the less active element (currently in solution as...

Yeah Barber's right; I know the theory but I want to know why

If you changed pressure/volume, wouldn't equilibrium lie to either side and hence different amounts of product and reactant are made, changing the value of K (as K = [P]/[R]) Likewise, if you change concentration of either P or R wouldn't that directly change K? The syllabus dot point is...

I think that for the most part scaling is a good idea. I do think, however, that it is slightly unfair as some people are born with logical minds (built for science and maths) whereas others possess the creative flair needed in art, drama or music. I know that even if I had studied art my...

Year 8 teacher told another kid, he "didn't deserve to live"

Thanks for reading that for me Excell! I hope you enjoyed it

Hi :) Just wondering if anybody could have a read of my creative (hopefully somebody who has already done the HSC) and tell me what you think? I currently think it's maybe a 9-10/15. I would really appreciate if you could also provide a rough mark. Send me a private message through this...

Hi :) Just wondering if anybody could have a read of my creative (hopefully somebody who has already done the HSC) and tell me what you think? I currently think it's maybe a 9-10/15. I would really appreciate if you could also provide a rough mark. Send me a private message through this...

From that video, the girl mentions that the electrons must form into cooper pairs in order to be able to move unimpeded through the lattice. Why must they form c. pairs in order to flow? If the lattice is already at critical temperature and the atoms within are no longer vibrating, why can't...

Can somebody elaborate on how the BCS theory and the idea of Cooper pairs explains why superconductivity occurs? I understand what they are but not why they occur in superconductors or why their presence allows superconductivity to occur. Thanks

I did Into the Wild (film) for belonging as well. Any notes would be much appreciated!

Thanks heaps! We tried the nitrogen experiment but failed

Yo, I meant the rest of the course excluding the option - I'm doing astro :P

All schools do an option - Its 25% of your paper. In the HSC you can do any option you want - It'd just be retarded to not do the one your teacher put 25% of your in-class time into... :P

If you got notes on the pracs would you mind uploading? I am getting a complete prac booklet for chem but don't think my school has one for phys....

Yeah, what he said ^

Thanks guys :) I totally understand the photoelectric effect now - It's actually pretty simple once you get your head around it!

Hey, Just wondering if anybody has any more to add towards this dotpoint. It's a really obscure one and my three textbooks all cover it quite poorly: Second-hand investigation: Process information to discuss Einstein and Planck’s differing views about whether science research is removed from...

Thanks for the questions Mirakon, will be really handy :) Yeah, I am studying the same way as you - Completing all my summaries (nearly done) and then hitting the past questions by topic. After I do that for a good time I will do a test or two under exam conditions and then it will just about...

Could either of you guys go over threshold frequency again? Not understanding that