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2012 3U CSSA SOLUTIONS - didnt want to waste time so i did in exam cond. so it might be good practice Page 1 - Page 2 - Page 3 - Page 4 - Page 5 - Page 6 - Bear in mind, i did not check... If there are mistakes, please let me know, also i've given a small guide for SOME questions Please...

re: HSC Chemistry Marathon Archive VERY NICE! Be careful: Haber process is a reversible reaction and also include a catalyst (Fe3O4)

re: HSC Chemistry Marathon Archive this question is within the syllabus, in part (b) if u can recall and apply previously learnt concepts, u can easily do it (if u understand what an electron-transfer reaction is) overall, u are not required to go in the exam knowing that the Haber process is...

re: HSC Chemistry Marathon Archive yes yes i was looking for this, and i totally forgot about the exothermic nature of this reaction (as nightweaver as pointed out)

re: HSC Chemistry Marathon Archive \frac{3}{4} a) ur missing 1 important thing b) yeh...i'll accept that even though i expected a different answer

re: HSC Chemistry Marathon Archive \frac{1}{4} nice try mate

LOOOOOL! i thought that same lol

sydney grammar papers are found on this site http://community.boredofstudies.org/showthread.php?t=290055 or if u can find nerdasdasds signature, there may be some there

re: HSC Chemistry Marathon Archive \leftarrow \cdot \rightarrow \\ \\ $a) Identify the reaction used to synthesise ammonia (include a relevant chemical equation) \fbox{2} \\ \\ b) Is this reaction an electron-transfer reaction? Explain your answer \fbox{2}

there is some time left to do sydney grammar papers (while u wait for ur desires)

ok thanks, all i needed to hear was "only dissolve slightly in water" lol

re: HSC Chemistry Marathon Archive bolded - extra info (if im wrong tell me) no catalyst + high temp and pressure = LDPE catalyst (Ziegler-natta) + lower temp and pressure = HDPE

"minh approaches a person in the first group and then selects a women. " So minh chooses that particular group and then starts to pick a person no problems

lol goodluck in 2u! all u need is some impressive algebra skills!

sorry for the lack of clarity! Here is what is in my head: Water (H2O) possess an electropositive hydrogen CF3Cl (a CFC) comes close and shows off its electronegativity (\delta ^+ )--- (\delta^{-}) ^A display of dipole-dipole attraction, so water and the CFC interact thus dissolving the...

then most likely that question is a 3u question (unless im not seeing a 2u way)

why cant CFCs such as CF_3Cl interact with water molecules through dipole-dipole interactions? (i.e. the electropositive hydrogen of water molecules attract to the CFC)

lol, where did u get this question from?

ln(5-x)^2 = [ln(5-x)]^2 ln(5-x)^2 =/= 2ln(5-x) However, ln[(5-x)^2] = 2ln(5-x) Importantly, The power must be within the logarithm, for u to apply that rule: ln(m^n) = nln(m) just to confirm, are my answers ALL correct? "i ) find the probability that minh approaches a person in the...

circle geometry (3u maths)