Tetrahedrite

Do second generation Americans in other countries have the right to vote in the American elections?

I am aware.....by "they" I mean the American politicians and the conservative media. What Phi for All et al. are describing is what is actually what is happening, what you are describing is the spin that the politicians et al. put on the facts!

Dude, they've got to you!!

I think the individuals who believe that going into Iraq has made American citizens safer from terrorism need to wake up and smell the gunpowder!! All that the US has done is created more terrorists where there were none before. Surely you don't buy the drivel that says that the world is now safer without Saddam. As Phi for All said, the US has just given the Muslim faith a further excuse to hate you [the USA]. The problem the US has is that it is creating enemies faster than it can kill them off! I honestly believe in decades to come history will show that unilaterally invading Iraq was the worst mistakes ever made by the US. A very large portion of the world now believe that the US is barbaric and tyrranical (whether true or not) and this surely will result in more US citizens losing their lives in years to come.

The element phosphorus was actually discovered by an alchemist (I think his name was something like Henning-Brand) trying to recover gold from urine. *laughs*

For me, affirmative action amounts to reverse discrimination. But having said that I can see a case for having a diversified workforce, in some cases

Bitumen (as far as I know) is made of a series of long chain hydrocarbons of varying types. At low temps these long chain molecules with high molecular weights are bonded fairly strongly by intermolecular forces but not by chemical bonds. This bonding allows the bitumen to act as a glue. When the bitumen is heated the intermolecular forces are easily overcome which allows it to flow like a liquid. If the bonds were chemical rather than intermolecular it would require enormous amounts of energy to get the bitumen to flow. Bitumen acts in much the same way as candle wax if that helps.

which is more likely: the earth moves through the universe, or, the whole universe moves around the earth?? I know which one I'm picking.

Thanx, I'm pretty stoked. Watch this space - I may have another new polymolybdate mineral coming soon!!!!

I don't think absorbing is the right word. The difference here is that CaO will actively produce OH- ions, even in basic water that contains very little H3O+ ions, where as Ca(OH)2 is limited by its Ksp.

That seems to be the US policy. The country that is supposed to be the benchmark for human rights sees fit to break these rights in order to make sure that other countries don't abuse these very same human rights

Never had to wear glasses. 20-20. I am quite suprised that a majority in the poll (so far) wear glasses or contacts

CaO (quicklime) will react with water as fast, or faster, than Ca(OH)2 (slaked lime), releasing large amounts of heat in the process. Slaked lime only has limited solubility in water, even when heated, so I would say that straight CaO is actually better at reducing the pH, and faster.

Its the right wing way! (and it's disgusting)

Too many zeros, average atomic mass = 12.011g/mol

The mineral is contained in one tiny piece of rock about 5x4x1 cms. I've probably got no more than a third of a gram so I'm not even going to try and melt the stuff!!

I like havabeertonite!

Etiquette says that you may name it after any deserving colleagues, but never after yourself.

I have just confirmed that a mineral that I found last week on a field trip is actually new to science!!! And I'm completely psyched!! For those who don't know much about mineralogy, there are only about 4,000 seperate mineral species known to man and only about 30 new species get discovered worldwide every year. To discover a new mineral species at my age is pretty cool (i think anyways) The mineral is related to pyromorphite, and has the approximate formula Pb3Ca2(PO4)3(OH,Cl). Don't know what we are going to name it yet, possible mineralhillit, after the name of the mine in which it was found.

It is quite simple, you take the molar mass of the hydrated salt, subtract the anhydrous molar mass, and divide by 18.016 (the molar mass of water) eg Molar mass MgSO4.nH2O = 246.488g/mol Molar mass MgSO4 = 120.376g/mol 246.488-120.376 = 126.112 now divide by 18.016 = 7 waters