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[answered] Calcium hydride, CaH 2 , reacts with water to form hydrogen


Calcium hydride, CaH2, reacts with water to form hydrogen gas.

CaH2(s) + 2 H2O(l)??Ca(OH)2(aq) + 2 H2(g)

This reaction is sometimes used to inflate life rafts, weather balloons, and the like, where a simple, compact means of generating H2is desired. How many grams of CaH2are needed to generate13.0L of H2gas if the pressure of H2is740. torr at25?C?

g

 


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