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^correct. though there's a much more profound reason why Br and OH are added. the end results are the same though.

IIRC, syncrotron doesn't make particles collide. They produce EMR for various purposes.

^I cannot put it better myself. A friend of mine did biofuel as a honour project and one of the fiercely debated issue is the fact that huge proportion of land will be dedicated to "grow" the fuel.... and cost wise, it's not cheaper than crude oil yet. and when it is, the supply might not...

^ urban myth.... personally i don't think it's true... you are not "ranked" but rather "marked", even though there might be some subjectivity present in the marking. now back to OP: forensic is mostly organic chemistry, spectroscopic stuff... one of the only "university chemistry" you would...

v = u + at u = 0, a = -9.8, t = 5 v = -49 ms^-1 Now: the person is stopped in 3 seconds. so average deceleration is: a = -49/3 ms^-2 and note: F = m a so average deceleration force is -49/3 x 75 = -1225N

Chemistry of both cells are elegantly quoted by forbidden. Now: Practicality: Button cells: inexpensive, portable, used in alot of appliances already Mercury: more expensive, provides steady voltage (a property desired in watches and pacemakers) Environmental: Button: minimal...

An easier way to make CO2: exhale. use a straw and blow into a water solution containing universal indicator and observe colour change.

In short: TOMS: Total Ozone Mapping Spectrophotometry (in CCHSC), A satellite generated image which shows ozone conc. or spectrophotometer on a weather balloon and compare it with the value getting on ground level. The difference of UV intensity is indicative of ozone conc. edit: re...

You may also use platinum wire, soak in 4M HCl and dip into the salt of question, then into the flame.

indeed =) (sorry about the late reply, honour's draining me alot =/)

Maybe question 1 is talking about clinical trials of pharmaceuticals on infectious diseases? Interaction between organisms are controlled so that the effectiveness of drug in trial maybe assessed. And the manage and treatment of disease just follows from that on. I don't like the...

oxygen: increases in lung, decreases everywhere else waste (especially nitrogenous waste): decreases at kidney, increases everywhere else. carbohydrate+other nutrient(this i'm not too sure with): increases in intestine, decreases everywhere else.

Uni phys is actually rather interesting... I was dazzled by the electromagnetism in fact, that I nearly ditched chemistry to do physics. But then, no one could seriously thinking about ditching the adorable chemistry =)

/wave @ mito yes, i'm sure i've seen you somewhere on bos.... but where? /thinks hard /give up =/

No one said it's going to be hard? Well, no one said it's gonna be easy. It's hard no doubt, but it's do-able.

google? wiki? australian maritime musuem?

sorry for the late reply, life's been tough on me... Cl- is a VERY weak conjugate base of HCl, and NH4+ is a weak conjugate acid would be the more correct way of putting it. Because by definition, a strong acid (or base ) need to ionise 100% (or close to 100%), and NH4+ doesn't do anything...

oxygen gas = O2 <--- relatively stable (since all valency electrons are filled) O - free radical <--- violently reactive with what ever it contacts (due to unfilled valence electrons) allotrope i believe is concerned with O2 and O3, not O and O2

ditto bmwz4 1 more thing to add though: weak acid forms weak conjugate base strong acid froms VERY very very weak conjugate base likewise, strong base forms VERY very very weak conjugate acid.

chemdraw and from the same company (cambridge) chem 3D does it edit: though i should add, the two molecules are not exaclty the same