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can someone give me a crash course on ph and concentration?? like is it decimal places for ph and then significant figures for concentration??

anyone know?

ok, after looking at the solutions i figured it out, but what is the general rule with the reaction between an acidic oxide and a base?

In order to determine the sulfate content of a commercial lawn-food, a student dissolves a 4.58 g sample of the lawn-food, adds excess BaCl2(aq), filters the mixture, and finally washes and dries the residue. After drying, the residue had a mass of 7.95g. What is the % sulfate in the lawnfood...

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1) Outline recent trends in Australia's net foreign liabilities (2 marks) 2) Explain the relationship between net foreign liabilities and the balance of payments (3) 3) Distinguish between debt and equity as a method of financing Australia's CAD. (3)

I know for science we are encouraged to draw diagrams but in eco is it suitable to draw a mini diagram, for e.g. like a explain the short term relationship between inflation and unemployment?

Whats the course like?? And would double degree should i do with this? I'm guessing Commerce/Advanced maths?

So what's the course like, tough? Should I do a double degree or just a single degree? Any help would be greatly appreciated,,.....

Is it poly-3-hydroxybutanoate or poly-3-hydroxybutyrate??

Is it poly-3-hydroBUTANOATE or poly-3-hydroxyBUTYRATE?, i think ive seen different ones everywhere....

please??

Ok other than obvious ones like medicine and law, are there are any other courses these guys do??

So what's the course like, starting salary and employment opportunities in the future?? Which uni out of macquarie or unsw is the better choice??

would appreciate it, if anyone can upload them! :) cheers

I want to keep time by using the stopwatch feature?? allowed or not alloweD?

^

For the HSC why is there 9 boxes for the student number?, isn't our student number just 8 numbers?

this has really got me confused...

Physics, and chem have got it - so we have to start it off as well Hopefully, we can see this through until eco HSC! QUESTION 1:...........Explain the relationship between the current account balance and the net foreign liabilities