hello to all, i wonder if such a mixture is possible to be produced and under which circumstances: C(5)O(30)Au(4)H(20)? I was told that the valencies are C = 4, O = -2, Au = 5 and H = 1 so the total valency of the mixture is 5 x 4 - 30 x 2 + 4 x 5 + 20 x 1 = 0 (makes the mixture stable). This is important because C is analogy for soil, O is analogy for air, Au is analogy for fire and H is analogy for water so mixing them in one will be like getting one unified monopole of all four basic elements in ancient Greek philosophy.

I NEED KNOWLEDGE ABOUT MAKING CRYSTALIZE PLATES ON SILVER SURFACE IN LABRATORY, AS THE NATURE MAKES IT IN LONG YEARS OR IS IT POSSIBLE TO MAKE COMPLETELY CRYSTALIZED SILVER OBJECT?
CRYSTALIZATION OF METALS IS THE SAME THING AS BEING-TURNING CARBON ??

THE NATURALY(300-500-2000 YEARS OLD) CRYSTALIZED SILVER HAS A DIFFERENT SOUND-TONE-TIMBRE WHE DROPPED ON A HARD SURFACE LIKE MARBKE OR GLASS OTHER THAN NEW ONES WHIC HAS THE SAME WEIGHT AND SHAPE,IS IT ABOUT CRYSTALIZED METAL BODY OR WHAT?

Is the oxidation of ascorbic acid to dehydroascorbic acid an exothermic or endothermic reaction?
Just need an answer -- can't find anything about this on the net.
Thanks

can cyclo propyl methyl carbo cation rearrange ?????

What would be the approximate position of silicon on the reactivity series?

p.p.

Varnish is a popular covering for many types of wood. You can find it most often on furniture, fancy woodworking, and baseboards. Varnish gives wood a shiny, protective covering that resists water, dirt, grease, and other contaminants.

I'm currently writing an article to post to a journal.

I need to write some boiling points or vapor pressures
of some halides on my article,
so I'm looking for some references or dictionaries
which have those values.

Especially I would like to find those values of
Ti, Ta, Hf, W, Si and Al halides.

I know there are those values in WebElements,
but I hesitate to write URLs in my reference list on my article.
I also know some references are listed in WebElemetns,
but I'm not sure which reference has those values.

Could you help me?

Environmental Pollution and Public Health (EPPH 2009),
Special Track within iCBBE2009
Call for Papers
http://www.icbbe.org/epph
Beijing, China, June 11-13, 2009
==================================================================
This special track EPPH is part of the third international conference
on Bioinformatics and Biomedical Engineering (iCBBE2009). EPPH2009
focuses on the relationship between environmental pollutions and human
health problems. The conference is sponsored by IEEE Engineering in

Some of me very valuable document (white in color) got stained in Tincture of Iodine that i was using to clean a wound. The papers turned black and i was asking if you guys have any advice on which chemical or detergent i can use to clean this papers. Someone told me it's possible but i have since then lost contacts with him.

Thanking you in advance for your time

Abebe