November 25, 2015

Homework Help: Chemistry

Posted by Amanda on Sunday, October 4, 2009 at 6:39pm.

CaH2 is so reactive with water that it can be used to "dry" solvents other than water. If a sample if solvent that contains a total of 14g of water is added to 24.6g of calcium hydride, which of these will remain after the reaction is complete: water or calcium hydride?

A. CaH2 will be left over
B. water will be left over
C. these two will both be used up completely
D. there is no way to predict

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