Search results

My school is in the 70s. English - 1/128 Bio - 1/48 Chem - 2/20 French - 3/12 Ext french - 2/10 Ext 1 english - 1/25 Ext 2 english - 2/12 And then I have accelerated maths from last year: 2 unit - 92 ext 1 - 44 Thank you in advance, lovely calculating people. :)

Bit confused by this one - help/method would be appreciated. :D "A 0.1 mol/L HCl solution has a pH of 1.0. What volume of water must be added to 90mL of this solution to obtain a final pH pf 2.0? a) 10mL b) 180 mL c) 810 mL d) 900 mL"

Hi! Are these two terms the same? I vaguely remember my teacher explaining the difference, but I'm not sure which one to use. Thanks!

Hi. As the title suggests, I am a bit confused about the difference between these two. According to wikipedia they are the same except: The reactivity series is sometimes quoted in the strict reverse order of standard electrode potentials, when it is also known as the "electrochemical series"...

Hey. Does anyone know what these cofactors/coenzymes are? Are they different things? What do they do? Thanks!

I would really love it if I could find some past HSC chem questions sorted by each dot point, not just by module. If anyone knows where I could find this, I'd be very grateful. :)

I'm totally confused by fractional distillation. How does it work? In a distillation tower are compounds with the highest or lowest boiling points at the top? And how does fractional distillation work in a lab? As you can see I'm pretty confused, and my grand plans to do dot point summaries...