Natural Science Forum / Chemistry / General Chemistry / August 2005

hi my name is masih

http://interface2037.com/cms/html/index.php?name=News&file=article&sid=7
"In an 18 August 2005 letter to the editor of "The Washington Post,"
IEEE-USA President Gerard A. Alphonse criticized a headline in the same
day's "Post" column, "Behind the Shortfall of U.S. Scientists." ...

Would anyone have any suggestions on how to remove lead rub marks on an
enamel surface.   There were lead weights on the inside of my shower liner
that have created marks over time when they flipped around due to the
billowing of the liner.  Nothing I have used has worked.

hi to all!!! i hope u were all fine!... well, i just visted a site and
found engineering infos!!... and i think it can be useful here!.. i
belive the site was really informative!... the site contain 2.2 million
pages of educational data!... try checkin it out!... its,

I really appreciate your help.Thanks for lots of friend for warmhearted
to solve my problem. And I want to be sure whether  diluted H2SO4
substitute for acetic acid.Because diluted H2SO4 was used in some
literatures. But for many reasons , I cannot read the original method.

Who can find the following literature' Ind. Eng. Chem.
Anal.Ed.15(1943)p327'.The author is 'G.M. Eisenberg'.Because I cannot
find it in internet.
Thanks again!

is there any (more or less comprehensive) source of functional groups
transformations available on internet?

$      Heisenberg's UNCERTAiNTY PRiNCiPLE is REDUNDANT.!!
1. MOMENTUM is a VECTOR quantity for which TWO (2) POSiTiONs
are NON-SiMULTANEOUSLY REQUiRED ..(the POSiTiONs of BOTH ENDs).!!
2. ANY one (1) single-measure ACCURACY is ALSO limited by hbar.!!

I am looking for a relatively cheap process to manufacture gypsum from
calcite. I realize it's not particuarly efficient, however if anyone
could shed some light, I would be very appreciative.

Hy,
After many searchs on the web, I hope someone could answer me.
What is the composition/formula of Kerdane, (aka De-aromatised fuel),
and how to product it.

Why are most general chemistry text simply silent on negative pH values
and values greater than 14? In the elementary classes chemistry
students learn that pH are defined from 0-14, but later they are unable
to accept the negative pH concept when by accident they _calculate_ pH

My father was a chemist and he frequently got chemicals for us to do
little home experiemnts with from one of several local chemical supply
houses. Now I am a father and I am trying to do some experiments with
my son. I have cooked up quite a few from things commonly available at

Hello everyone! I am a chinese student majoring in chemistry. Here I
met a difficulty from the mechanism of cyclohexane oxidation using
hydrogen peroxide as oxidant in liquid phase. Welcome you to give me
your opinion .

A friend of mine is writing a (pretty important) work for school about
the bioluminescence of mushrooms at the example of panellus stipticus.
Now she tried to find out the chemical formula for the
luciferine-luciferqase-reaction of this mushroom. I searched in every

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