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Yeah, that's true. But for the purpose of Bio.. I don't think they need us to show the donating of proton to water by H2CO3. In most textbooks, I see it simply as H2CO3 forming H+ ions and bicarbonate ions.

Even though I didn't do this option, I can tell you about validity. Validity encompasses the idea that the dependent variable is solely influenced or determined by the independent variable in the investigation, i.e. a method is reached so that only one conclusion is always reached by...

When you're given a trig equation to solve e.g. 1-2cosx=0 2cosx=1 cosx=1/2 you have to look at the value of cosx.. eg. in this case, 1/2 is a positive value. Therefore, you have to look with the circle thing (All Stations To Central) , where COS is positive. Here's a simple...

The equilibrium constant is only measuring the extent to which the forward reaction is occuring/favoured at particular conditions. If conditions such as pressure and temperature of the reaction are given, make sure you answer in this format: Kc = __ at T°C and ___kPa or ___atm For...

It's obviously not for the one who sucks up most... Lol, but our new school principal is like that... If we had our old principal who was the bestttttt.... it would've been fair and square. Like, for example... on our graduation ceremony.. there were a few 'special awards' aside from the...

Our school gave that scholarship to someone who didn't top the units... to the guy who sucked up to our principal.. I should've gotten it.. since I topped the most units.

And plus... even though the HSC exams are easier than trials (generally)... raw HSC exam marks are scaled up (or aligned) by the BOS anyway.

Lol but Namu, you're an accelerant..is it only Mathematics your doing this year? Don't worry.. you'll do awesome anyway.

I don't do Phy... but i'd suggest Technetium-99m. It releases low-energy gamma radiation, when it downgrades from a metastable state. It has a half-life of 6 hours, and since it emits low-energy gamma radiation... does not expose the body to harmful radiation for long periods. It's multiple...

Lol it's impossible for me to write a 20/20 creative writing. That's the thing I'm really worried about from my English papers. The only thing that will drag me down the most, unfortunately.

Don't make yourself feel bad if you didn't meet your target for the day... 4.5 hours is still quite good. At least you did SOMETHING - remember there's people out there still 'cooling off' lol. I reckon everyone will get into a pace of studying within the next couple of days and really get...

Yep.. because the independent variable (bacteria exposure) was absent, yet all other variables were controlled, just like in the experiment flask.

Woot I actually did 8 hours of solid study today. So proud. LOL

What exactly do u mean by 'builders' ? All I know is that with anionic detergents, there is a benzene ring after the hydrocarbon chain. eg. CH2---(CH)13---BENZENE RING---N-(CH3)3 (-)

The acidic nature of CO2: CO2 + H2O --> H2CO3(aq) H2CO3 ---> 2H+ + (CO3)2- Its the H+ from the carbonic acid, which is produced by CO2 reacting with water... which lowers the pH. As H+ increases, pH decreases.

No, never had one.

Planning to get 8 hours per day done. I stress PLANNING. So far, I have done 4 hours today... another 4 and then rest time.

I guess they're doing ESL?

yep lol

Media Release from BOS Enrolment trends The candidature for the 2008 HSC is the highest on record with 67 931 students enrolled in one or more courses, the largest group ever to complete Year 12 in NSW. The female to male ratio remains stable at 52 per cent female students compared with...