John Cuthber

IIRC the traditional choice of acid is CO2. It's cheap and essentially impossible to oxidise.

I'd have to check the deffinitions but I think that under the Lux Flood calssification CO2 is an acid. I doubt anyone cares. The problem isn't CO2. Give me enough cheap energy and I'm sure I can dream up some trick for converting it back to C and O2. The problem is energy. Incidentally I also think that while the rich and powerfull certainly gain from the oil/ coal business, it's fair to say that they had roughly 6 billion people helping them make CO2 (obviously some people help more than others.) Unless you walk to and from work, only eat vegetables you grow at home etc, don't say that CO2 is someone else's fault. The problem certainly isn't going to be solved by blaming "other people".

Your belief in your teacher's wisdom wouldn't stop the stuff decomposin so I'm glad you have decided against this experiment.

when I saw this I assumed a few lines had been missed out. I thought the story was the same but after "...Why doesn't the homeless guy come over and do the work, and you can just pay him the $50? '" it might have included "Because he has mental health problems- sadly he will never hold down a job, even a menial one" "Screw him then" "I said, 'Welcome to the Republican Party.'"

I thought that the politicians already had mind control toys; they call them voters. Anyway, it will be interesting to see how thist technology evolves.

"i plan to be a valedictorian and get into the desired college of mine for alot cheaper than usual{ high standards, but i can do it} wich seems kind of errogant for me to just say, but i know i can do it. my accumalitive gpa is 3.5 and its going to keep raising" Learn to use capital letters; how to spell arrogant, and that "a lot" is two words or you are not going to get very far in the academic world.

I think you can forget them in this case, they get deprotonated to the carboxylate ion which is negatively charged and so it's not attacked by the hydride. Esters, IIRC are reduced by LiAlH4

Since you are asking about its properties I think it's fair to say that you are not familiar with them. Since you also think that you need to heat the stuff to get it to detonate (you don't) and that an apron etc. will do you any good (it won't) then I think my remark is fair comment.

Is this the sort of things you are after? http://en.wikipedia.org/wiki/Electrodialysis

Neat, but not, I fear, very practical.

As far as I can see you haven't ruled out a system like the sun and the earth. You need to specify the original conditions but, in any event this is a bit of calculus that must have been done before.

"it should only be handled with appropriate safety equipment, and under the supervision of someone who is familiar with it's properties." So, not by you then.

Pb (NO3)2 and charcoal would probably be more vigorous than black powder and I wouldn't try it in a test tube. Dissolve the stuff in water and precipitate PbCO3, then reduce that. (Also, part of what precipitates may be a basic nitrate- be careful with this- dodn't try it in front of an audience untill you have tried it outside and without the distraction of keeping the audience happy.

Did you hear about the homeopath who forgot to take his "medicine"? He died of an overdose.

This http://www.vanmeuwen.com/plant/73965 has the advantage of being there when you are out.

You will find that glass melts before copper. Do you have a fused quartz tube? If you have some cassiterite about the place you might pretend to be bronze age. Also, bronze has a somewhat lower melting point (though probably not low enogh for a glass tube). I think the smelting takes place below the melting point because the reaction is between CO and CuO. My guess is that the reaction wouldn't work so well in a vacuum untill the CuO melted.

The syntheses of ethanolamine, diethanolamine and triethanolamine among other things relies on the reaction of an epoxide with ammonia or an amine.

I have seen plenty of stairs which are more or less like the second case shown. It's common for the riser to be set back from the edge of the step when using timber. Like these. http://www.blocklayer.com/stairs/ But with concrete the design is pretty much pyxxo's second diagram. http://images.google.co.uk/imgres?imgurl=http://www.builderbill-diy-help.com/image-files/st-concr.jpg&imgrefurl=http://www.builderbill-diy-help.com/formwork-stairs.html&usg=__VMrFpT-1CjqSBKn_UGXlOccuk7o=&h=364&w=484&sz=24&hl=en&start=16&um=1&tbnid=usDrpgKF9xWl9M:&tbnh=97&tbnw=129&prev=/images%3Fq%3Dconcrete%2Bstairs%26hl%3Den%26rlz%3D1T4GGLJ_en%26um%3D1 Also, a bee hive has a stack of hexagonal tubes, but they have a nearly flat face. That face is at right angles to the axes of all the tubes. There are, therefore, plenty of right angles in bee hives.

Has anyone 'phoned a Japanese plumber yet? (And, in case anyone is wondering, I do plan to keep on banging on about this until GoldenEagles actually answers it; preferably without mentioning God, Columbus, Einstein or any other "authority" figures) BTW, if you accept the riduculously over inflated costs suggested for doing this work then you can compare them to the million dollars on offer if it works. If I could win a million by investing a few tens of thousands I'd go for it. Why doesn't Dr Emoto? Could it be that he realises that he's a fake? Perhaps he tried, but the bank manger 'phoned the plumber.

It might help if you actually said what OCD is.

Shouldn't this be in "homework help"?

It should work with the carbonate, but be aware that some CO will be generated. Have fun playing at being a caveman with a bunsen burner.

I think the distance between the pupils is relatively easy to measure. The last time I had my eyes checked it wasn't the optician but the sales' assistant who measured it- that's probably why it's not on the prescription. Any place that will sell prescription glasses should be able to measure it so, as long as you have the other prescription details, you shouldn't need another eye test.

I'm not convinced that the best answer to the original question involves all the spinoffs. Surely it is like asking "Art; why bother?" and the answer is that it's what humans do. On the other hand, my favorite example is that particle physics like atom smashing makes lots of data and that some bloke at CERN wanted a way of sending lots of data round the place. There's a reference to it in that page ajb cited. The outcome was called the web.

He may well want it but it's not this sites habit to give the answer. Giving hints and advice is better for th estudent.