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It is not anhydrous, meaning it can absorb moisture in the air so the mass is not constant. Also NaOH Molar Mass is only 44 g/mol, so if you left a drop, the error percentage would be heaps compared to say NaHCO3.

Got it, thanks. If you can tell me, what program did you use to make such a nice diagram? Paint? For question 1, I am not sure, but I am going to scan my diagram when I can get to a scanner. Here is how I draw it. AC is a straight line with B somewhere in the middle. AB is 4 m and BC is 5 m...

Yeah, everything has been covered in class. That's why it's called "HSC Revision Day". I guess they dropped some hint if you actually listen about what type of questions we will get this year because I think the presenters are involved somehow in the preparation for the HSC. That's just what I...

Just a couple of confusing questions: 1. Two interconnecting equilateral triangle-shape (note: not pyramids) buildings, ABD and BCE, are built on a horizontal plane so that AC is horizontal. AB is 4 metres and CE is 5 metres. Find the angle DE makes with the horizontal. (Note: I managed to...

Probably yes, because they have registration time from 9 to 9.30. My teacher told me that I don't have to go there for register, so yes I think you can still go. The cost is $20 (and for teacher it is $30 - don't know why:p).

For any level of Mathematics, the Board of Studies can examine up to 30% preliminary content in the HSC exam. For any Sciences, the preliminary content is assumed knowledge in the HSC course. Year 12s saying 'enjoy year 11 while you still can' is because your marks will not mean anything, not...

Guess all ESL students are too shy to reply. I bet there will be heaps of you in the centre tomorrow morning. OK then, enjoy the seminar.:)

I don't really understand your question but I try my best to give you an answer. In dialogue, the author usually use present tense whereas in the main story, the author would use past tense. Dialogue is important for characterisation development, which may include relationship between...

Well, my principal was lying then when he said that every year the Board of Studies issued email to every school in NSW which stated that Muck-up day is not allowed by the government. This thread is the living proof.:D

Thanks. I know most of all like we have been waiting for this moment for a long time but don't want this moment to pass. Good luck in your HSC too! Cheers :)

95 - getting into my first preference course. 99.85 - beating the highest UAI achieved by my school. In between, nothing. Below, probably not going to university and as a result, being rewarded with $2000 saving. *EDIT: I typed $20000 in my original post. Wish I have that money...:p

It is interesting to see Lazarus posting three posts within 80 minutes. I think edit button has not been implemented then...

Blue Travel Ten at Night Owl

Society and Culture Survey: Intra-personal Communication Age: 18 Gender: Male Female 1. Have you ever kept a diary? Yes No If No go to question 5? 2. Was it for personal reflection (e.g. Dear diary… or Blog style)? Yes No (if no go to question 5) 3. How long did you keep it...

How can the Board of Studies have data about everyone that started in kindergarten? I believe the first time they assigned a number to every student in NSW is when the student did their School Certificate in Year 10.

Put HSC Scaled marks to SAM for the most accurate UAI prediction, which are the average of your moderated internal assessments marks and aligned external marks.

OK thanks. Cheers.:)

Thanks Venusian.:) Yes, I intend to stay in Australia after I finished my uni degree. I just not quite understand the concept of referee. So I can put teachers from my school as my referees? I thought the referee must be people who has or is currently accommodating at the college. Is it...

Not necessary. It has something to do with the percentage of the School Certificate (SC) cohort who had an SC mark less than or equal to the given SC mark (SC percentile) and also to the UAI eligible percentile. In 2005, there are 63 867 HSC candidatures (even those with only 1 or 2 unit/s), so...

Every year the UAC published a booklet about "Report on the Scaling of the xxxx (Year) NSW Higher School Certificate". If your school does not supply you with the booklet, then I think you can download the 2005 pdf version at: http://www.uac.edu.au/admin/uai.html There are warning though for...