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Take the risk. Everyone else, by which I mean me, is

That is the same answer I would've got. I'm 99% sure that's right

Sorry, can't be bothered to do actual calculations HCl + NaOH ---> NaCl + H2O Firstly work out how many moles of HCl you have: moles = M=molarity x L As you can see 1 mole of HCl = 1 mole of NaOH Now you have the moles of NaOH mass = moles x M (M = 40) And there is your answer

Yeah, I focused on Claudius. But what happened to the fact that there would be one question on the Augustan period and one on the Julio-Claudian period, ie. the other emperors?

Yeah, that's how I thought it worked. Thanks for clearing that up

Why do you need to know this?

Thanks very much, and that made me realise how foolish I was not to realise that final step. Anyway, cheers.

Why is it impossible? I've seen questions on chemists in trials before

I think of it as the same element in a different form, but that wouldn't be best for the HSC. A dictionary definition is : any of two or more physical forms in which an element can exist. So I would say allotropes of the different forms an element can exist in, then use ozone and oxygen as an...

Heh I suppose it is. Still, I can't really think of a way to put it into words.

Thanks, and the main reason I didn't post it is because I don't know how to do superscript. How do you do it?

I'll do it tomorrow if the question still hasn't been answered

Well as Xayma pointed out earlier there is no reason any properties should be similar. I like the example of oxygen and ozone, and they obviously have markedly different physical AND chemical properties. Are you looking at a specific HSC question?

Nice, because at the moment I'm not worrying about anything that won't be in the exam

It's going to be maths that will really hurt you though, as you do have 4 units of it.

True, but I've never seen a question referring to that, except for the multiple choice one. Every acid rain question I've seen refers to sulfur and nitrogen. Correct me if I'm, wrong

Yeah no problem, I'm assuming you have the Success one book so the part I don't understand (referring to answers) is the step after you have determined the minimum value for u

I can't be bothered to write out the whole question, but I simply don't understand how this question works. If anyone could shed some light on the topic, if would be greatly appreciated.

Yeah I have to agree. That is the only one I've come across while sticking to the syllabus

By the sound of it, it may be a abit risky, but I am almost completely preparing myself for a question on Augusts (which I take to include other prominent of the time). I've devoted minimal time to the other four emperors, but if the worst should happen, I reckon I'll be able to pull a decent...