What Is The Rock Obsidian Used For?


Answer:
It's a type of volcanic glass and, oddly enough, one of its basic uses is in surgery, where obsidian scalpel blades have proved extremely effectual as they are so sharp that they do minimal tissue damage.

Resolved Questions:
How do you identify cis and trans by using NMR Spectroscopy?
I just learned you can but 20 years ago we had trouble purely separating them so used some kind of polarimeter that gave us the ration of cis to trans. If you Google "cis trans isomers detection NMR" though you will find much more....

Where does the Kalahari Desert extend to?
The Kalahari Desert is an arid region lying in southern Africa; the desert lies mainly in the Republic of Botswana and extends contained by to the eastern parts of Namibia and northern parts of the Republic of South Africa. The desert covers an area covering about 900,000 sq...

What Conditions Favor The Formation Of Ionic Compounds From Elements?...
Deals with chemistry Option B> A Metal And A Nonmetal As a universal rule, when metals react near non-metals, ionic compounds will be produced.