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ok another question, how can you tell if a reaction is exothermic or endo?? for example, co2 +h20 --> h2CO3 and this reaction is somehow exothermic?? is there someing about proton transfer because i remember reading something about it HELP thanks,

so if it donates more protons, then it is a beetter conductor? i already knew the order (without looking at the answers lol) but i just want to know if there is a general rule, or is it something you must memorise? the answer is 0.5M sulfuric acid 0.1M calcium Hydroxide 0.1M sodium hydroxide...

how would you do this question Q1: Rank these solutions from lowest to highest pH: 0.1mol l^-1 acetic acid 0.1mol l^-1 hydrochloric acid 0.1mol l^-1sodium hydroxide 0.1mol l^-1sulfuric acid 0.1mol l^-1 ammonia solution Q2: Rank these solutions in order from best to poorest conductor of...

go get a year 11 text book and read it. it is the only way you can know the important stuff. (its going to be a lot of work though) unless you can get an amazing tutor what you can do it remember the basic reactions such as metal and acid acid and base learn your radicals (co3 ^2-) ect google...

we have to do a pendulum experiment in class and answer stuff on it. If you use the jacaranda book you can find the prac. im sure other textbooks have it. best of luck. my task is worth 15%

even though i am just starting year 12, i just thought that i might make the first thread here. so people how was the exam?

lol, you bored child....

I am planning to organise for my whole grade to keep all their notes so that on the last day, we can throw the notes into our empty pool (all 168 or so students would be great) and we can throw petrol and deodorant cans on to it and throw a match in there. i hope the don't fix the filters by...

wow, five pages typed. in the exam room, you half know what you are doing and you normally skip a line or two.... so is that like 30 pages?? wow. how many pages do they give you to write your solutions on?

thank!

my budget was 800. i guess 810 is ok

i just need a laptop that will last me year 12 and the first few years of university.\ if i buy a tower, i also need to buy a monitor

ok then, what do people think of this Dell inspiron 15 Processor: Intel(R) Pentium Dual Core T4300 (2.1GHz / 800FSB / 1MB) OS: windows 7 home premium memory: 3GB (1x2GB/1x1GB) NECC Dual Channel DDR2 SDRAM Memory HDD:250GBS video card:Intel(TM) Graphics Media Accelerator X4500HD and grey carry...

but, there is less GHz?

it this processor worth adding $89 to the total price Intel(R) Pentium Dual Core T4300 (2.1GHz / 800FSB / 1MB)??

is this a good processor Intel® Celeron® Processor 900 (1M Cache, 2.20 GHz, 800 MHz FSB) i only need it to open PDF's, word, itunes... nothing fancy thanks!:)

i think the reason why some students just vomit their memorised responses is because you only have 40 mins to write about 1000 words in the 2hr time frame. if they want student to think on their feet, at least give like 15 mins extra for planning (5 mins each question, for the extended...

GET OFF BORED OF STUDIES AND GO STUDY!!!. just hanging around this site isn't going to make you any smarter!

HSC isn't the be all and end all.... but it does have a major influence on where the rest of your life points, career wise

Breakfast: 2 eggs, sunny side up Lunch: bondi burger from oportos and a banana Dinner: Pizza from the local pizza man (meat lovers)