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April 17, 2014

Homework Help: Chem 100 Lab

Posted by Boyet on Sunday, February 19, 2012 at 12:26am.

A black solid is heated in a tube that is completely evacuated of air. Hydrogen is added to the tube. An orange powder is formed and water vapor is seen on the outside of the tube. Is the original solid an element or compound? Can you identify the chemical?

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