Recent content by HiHaii

Selling: Chemistry The Central Science: A Broad Perspective 2nd Edition with Molecular Model Set (RRP $213.36) AND SI Chemical Data 6th Edition (RRP $29.95) for $110.00. Both are still in excellent condition. Like new. Has not been written on with no rips or tears. Model Sets still the same...

Selling: Chemistry The Central Science: A Broad Perspective 2nd Edition with Molecular Model Set (RRP $213.36) AND SI Chemical Data 6th Edition (RRP $29.95) for $110.00. Both are still in excellent condition. Like new. Has not been written on with no rips or tears. Model Sets still the same...

Hey buy from me instead! :D My one is exactly the same. The only difference is that the condition is excellent! Plus this is a package. That is, the required text: Chemistry the Central science, comes with a Molecular Model Set (RRP $213.36) which will be essential when you reach the organic...

It is better getting the core text 2nd hand because the difference between the new is too minimal. If you buy new texts they will give you a code to access on the internet for more material but honesty no one uses them even if they have the code because the text already has way too much info...

Please check out the ad I posted on Gumtree. I'm selling for $110 so it's worth looking. It's two texts plus a model set (=$243.31), both texts are required for university students studying chemistry. You'll be saving a lot. Selling urgent in need to buy 2nd year text books...

Hi, Does anyone know how to access lecture notes from previous years on UTS Online? It is possible and has been done before. The stuff lecturers has uploaded is saved but cannot be accessed because it's previous years stuff. Uni is almost here and I'm wondering if anyone knows because it...

Re: Upload Biology in Focus HSC I actually like Jacaranda. The context seems pretty good. Not that bad compared to bio in context

Re: Upload Biology in Focus HSC I use Biology in Context and Heinemann. Both aren't that good. Heinemann is too explicit and does not explain the syllabus to the point where you would understand. Biology in Context is too broad, it goes off topic at most times. It can be used as a second...

What does everybody think about Biology in Focus HSC ?

do you need to do reduction or oxidation to the spectator ion shown? and is there is a last step i.e. removing the spectator electrons coming out to be Al + 2H \to Al + H_{2} and Ba + 2H \to Ba + H_{2}

it's blocked at your school?? hahaha not blocked at my school, and it's public as well should work

please help with this question, i am having trouble knowing how cause it's hard how do i find the empirical formula of the minerals Boehmite, Gibbsite and Diaspore? Given that the composition of: Boehmite is 44.98% Al, 53.34% O, 1.68% H (Density: 3.1, Hardness: 3) Gibbsite is 34.59%...

It seems like I keep on asking for more help... 1)Some fertilisers are labelled "NPK fertiliser" because they contain the elements nitrogen, phosphorus and potassium. Which of the following pairs of compounds could be used as a "NPK fertiliser"? A) ammonia and sodium hydrogen phosphate B)...

I thought you can't cause it doesn't work for 'non-metals' only works for ionic compounds

lol a good discussion u guys are having I mean writing as a compound as in having the brackets in each of the elements it's hard to illustrate it here but it goes something like: [O][2Br] then you have the dots around each of the element according to the valency as well as the symbol, such...