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Can someone who is ranking second overtake the first ranking guy if he performs better in the trials and external HSC? And, if yes, can a third place student take first place if he performs better in trials and externals than the first and second ranked students?

Which of the following is both an empirical formula and a molecular formula? * *(A)*CO *(B)*C3H6 *(C)*CuSO4*∙ 5H2O *(D)*NaCl

What textbook do u guys use or recommend for HSC biology?

Could someone give me the answers to the water module? Please :)

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

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

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?

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...

"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...

What mass of zinc can be obtained from the reaction of 16.3g of zinc oxide according to the following equation. ZnO (s) + C (s) -> Zn (s) + CO (g) I orginally got 16.3g as my answer... but now I think it is 65.39g ..

Why do parents think they know everything because of their age over their children? Why? Why? Why? Age = more life experience? I think that is a load of nonsense because once an individual gains the ability to think logically, in a self-conscious state, age no longer is a factor to the amount of...

Is this equation even right? Because it doesnt make any sense... 3 NaHSO3 + HAuCl4 +3H2O = 3 NaHSO4 + 8HCl + 2 Au

I dont understand what I am suppose to do here: "effectively justify appropriate criteria used to evaluate the alloys" or "provide a justification of the criteria used to evaluate the alloys." Help

http://www.pearson.com.au/9781442564916 Do u guys think it will be good for me to purchase this book for 2u maths ? thank you in advance :)

There is an ancient history exam coming up next wednesday. I dont know how to study for the ancient history exam.. Do I practise writing essays on what ive learnt or... what? Help please

How to improve in chemistry? I got around 80 percent today in my half yearly exam.. Should I go buy different txtbooks to improve?