Calcium hydride, cah2, reacts with water to form hydrogen gas:
cah2(s)+2h2o(l)→ca(oh)2(aq)+2...
Calcium hydride, cah2, reacts with water to form hydrogen gas:
cah2(s)+2h2o(l)→ca(oh)2(aq)+2h2(g)
this reaction is sometimes used to inflate life rafts, weather balloons, and the like, where a simple, compact means of generating h2 is desired.
how many grams of cah2 are needed to generate 145 l of h2 gas if the pressure of h2 is 823 torr at 21 ∘c?
Answers: 2
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