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Just need an explanation for these two chemical reactions and why the reactants created the products (btw equations aren't balanced) Ca + H2O --> Ca(OH)2 + H2 CaCO3 + HCl --> CaCl2 + CO2 + H2O

for yr 11 you need at least 12 units and you only have 10

I know that in the decomposition reaction AB --> A+B but I don't understand the examples listed below First one: CaCO3 ---> CaO + CO2 why does it equal to calcium oxide + carbon dioxide and not calcium + carbonate? Second one: KClO3 ---> KCl + O2 I just don't understand this one haha

To people who have done them before, what are the tests like? Are they similar? Do you think a Year 10 student can cope with the test content?

If you plan to do Maths Ext 1 or 2, will your marks from 2unit maths count towards your ATAR?

Well I go to Manly, which was I think ranked 14th last year but we're normally in the top 10

I have this teacher who is an extremely cool person but honestly has no teaching ability. Some days he would spend the first 20mins of class scrolling through youtube to find a video we can watch, but most of the time they end up being really bad and he's like "we don't need to watch the rest of...

a) x^2 - 2kx + 16 b) (5k - 1)x^2 - 4x + (2k - 1) Do I solve these using the discriminant formula?

oh crap

^^^^^^^^^

yeah going on with mousetop's response, write and memorise notes as you go so you don't have to stress out about memorising a whole chunk of notes at the end just before the test

It doesn't matter how long you study for. What matters is how effective your study sessions are. So like you may say that you study for 3-4 hours but actually you were on facebook at the same time, making your study ineffective (btw I'm not saying that you do that, but that's what most people...

How many quotes per paragraph? Definitely at least three I think. Better ask your teacher How many paragraphs per idea? 1 How exactly should I structure my PEEL, TEEL, or any sort? T: topic sentence, where you introduce your idea. E: evidence, so quotes and stuff. E: explanation: how your...

i'd say 13 It's better to do as many subjects you can cope with so that you have a wider choice on what subjects you can drop for yr 12

I think you should do subjects that will give you a wide range of uni and job opportunities eg. doing chemistry can help you get into any science course, maths is required if you want to become a teacher i think, economics for when you want to go into finance, legal for law, etc Also choose...

If your school has the textbooks then on like the first page there should be a username and password which you can then use to login to pearsonplaces.com.au and get an online version of the textbooks. I think you can also sign up on the website without needing a username and password but I think...

First of all, I go to a selective school and trust me half of the kids in my grade get credits, quite a few get distinctions and maybe one or two get a high distinction. Second of all: school-based tests are completely different to tests like ICAS. School exams test your knowledge on the stuff...

How do I find the domain and range of functions without having to draw it out or know the graph? I know for functions that have a square root the value under the square root can't be negative, or in a fraction the denominator cannot be zero, etc, so figuring out the domain isn't too hard, but...

s=ut+1/2at^2 v^2=u^2+2as What are these two formulas used for? I know that the first one can be used to find displacement but it can be figured out through s=vt

just want to know what stuff you learn and what the assessments are like for each course since I have to choose my prelim courses pretty soon