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How about uranium mining activity ~ the massive quantities involved could easily lead to lead (lead to lead??!) getting into soils and then leaching into the waterways. Just a thought.

Whatever.. :rolleyes:

Yield usually is a factor in organic chemisty. Consider the production of amphetamines; it has 22 distinct stages ~ you start with kilos and kilos of stuff only to make less than a gram. Don't quote me on that, I don't know first hand. It is usually because of an equilibria that you get...

usually it is best to have 'edu' in the domain, but they should be fine. You just need to reference them correctly.

42 ... shit

I won't ruin it for you, but it would be easier to say; Simplify f(c)=2/cos(c) :rolleyes:

What do you mean 'normal people'. Celebrities are no better a person than anyone else. I think that 8 years is excessive, but on the other hand it is good to see inflated egos smacked down to Earth. Do people really think that celebrities are above the law because it makes interesting gossip for...

What do you want to know about them?! In a general hand-waving terms? I know plenty about atomic absorption spectroscopy (shucks I was using it last Friday). Y'Know it was an Australian invention .. no?! Well you do now.

acckk!! First Singapore ~ now new New Coffs Harbour campus?! The uni is breeding like rabbits!

y=ef(x) y'=f'(x)ef(x) y''=f'(x)2ef(x) + f''(x)ef(x) y'''=f'(x)3ef(x) + f'(x)2f''(x)ef(x) + f''(x)2ef(x) + f'''(x)ef(x) conditions of inflection; y'' = 0, y''' not equal 0 f'(x)2 + f''(x) = 0 f'(x)2 = -f''(x) f'(x)3 + f'(x)2f''(x) + f''(x)2 + f'''(x) not equal 0 f'(x)3 + f'''(x)...

We are talking y=e^f(x),.. all that has been resolved in my post.

This question has far too much writing in it! mass Mg(NH4)PO4.6H2O = 1.83g molar mass of Mg(NH4)PO4.6H2O = 245.418g amount Mg(NH4)PO4.6H2O = 7.457E-3 mol amount PO4 = 7.457E-3 mol mass PO4 = 0.708g mass of sample = 6.92g concentration PO4 = 0.708/6.92 * 100% = 10.23 w/w %

Hey I'll explain Q12 a bit better blue is supposed to be the parabolic path. The distance between the pole and the bird is 10 times the time (10 t) The distance between the person and the bird is Vh (the horizontal velocity of the stone) times the flight time ( Vh.t ) The distance...

i have that the conditions on are; f'(x)2 = - f''(x) AND f'''(x) + f'(x)3 not equal to 0

That is the probability that at least one is Red, which is given; The problability of 2 Red is 2/7 for the entire tree, but at least one is red. So the answer should be (2/7)/(6/7) = 2/6 = 1/3

Dispersion forces occur is all molecules (if your teacher disagrees hit him/her) A) none others B) ion- ion C) ion- ion D) dipole- dipole, hydrogen bonding E) hydrogen bonding, dipole- dipole F) dipole- dipole G) dipole- dipole H) hydrogen bonding I) dipole- dipole I think thats it

also consider the optical properties.

Additional solid metal properties: Hardness Strength This lot is way beyond the scope of your assignment, but if you want to list them in passing and investigate one or two. If you are looking to analyse metals in water, foods, medicines etc. atomic absortion spectroscopy...

I always get 1/3.

uh yeah, it is the geometry of a parabola; x2/y = constant = (x0)2/y0