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Will there be a change in the syllabus for some subjects in the 2015 HSC course?

Need a master to answer this question :@

Will the amount of solute dissolved in water affect the change in temperature?

I agree with all the comments above. Stay in 2u and see how you perform. Try hard and good luck : D

True.. so the answer will be all 3...

Nice. So for a question like : what intermolecular force is present between molecules of H20? The answer dispersion forces and hydrogen bonding would be correct?

Can hydrogen bonding and dispersion forces coexist between two molecules? By the way, do dispersion forces only exist in non polar molecules or covalent bonded molecules? Or any molecules?

Thank you all! ^^

Cool! Thank you! I'll try my best to get the rank 1 then :)))

Rank 1 wont be affected? O.o

403 I think

Then, should I drop bio next year if the ppl doing biology remain getting such bad results?

Let's say the guy who is ranked 1st in biology got 94 percent and the second guy who is ranked 2nd got 88 percent and the third guy who is ranked third FAILED.. 4th place onwards also failed... and there are about 60 students doing biology.... how much will the first and second guys who got 94...

Thank you ^^ I kind da know what it means now :^)

"Include a detailed method including written in steps, the methodology used and risk assessment" What does methodology mean? Does it mean the idea behind how the method works and why the method is viable in testing the aim of the experiment? Can someone please explain to me the difference...

I think so...

Yeah I'm absolutely certain that my eqn is correct :^)

One more question guys. Octane, C8H18, when burnt in oxygen produces carbon dioxide and water. When 91.2g of octane is burnt, calculatr the following: The mass of oxygen consumed? I worked out the chemival eqn btw. 2 C8H18+ 25 O -> 16CO2 + 18H2O (balanced) Is the answer 160g ?

Different periodic table... results slightly different

Never mind! They're both wrong I think.... I got 13.078g now.. for the mass of zinc. Haha..