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Chemistry Forums for Students => Undergraduate General Chemistry Forum => Problem of the Week Archive => Topic started by: Borek on July 02, 2012, 05:34:05 AM

Title: Problem of the week - 02/07/2012
Post by: Borek on July 02, 2012, 05:34:05 AM

When stoichiometric amounts of two metals (neither of each has a silver color typical for most metals) are heated in a neutral atmosphere, produced substance has a specific resistance  several orders of magnitude higher than original metals. When thrown into water substance reacts violently, producing a gas (34 mL at STP per 1 g of the solid) and an alkaline suspension.

Name the substance.

Title: Re: Problem of the week - 02/07/2012
Post by: Schrödinger on July 02, 2012, 07:30:43 AM

CsAu ? Educated guess, although, it might be wrong

Edit : Just did the calculations. I think it is CsAu. Not much doubt now.

Title: Re: Problem of the week - 02/07/2012
Post by: AWK on July 02, 2012, 07:58:54 AM

http://www.cs.rochester.edu/u/nelson/cesium/cesium_compounds.html
http://en.wikipedia.org/wiki/Caesium_auride

Title: Re: Problem of the week - 02/07/2012
Post by: Borek on July 03, 2012, 04:32:51 PM

Caesium auride it is.