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Calcium hydride (CaH2, 42.10 g/mol) is so reactive with water 18.02 g/mol) that it can be used to remove traces of water from nonaqueous solvents.What mass of the excess reactant will be left over if 24.6 g CaH2 is added to a large volume of solvent that contains 14.0 g H2O?
CaH2 (s) +2H2 O(l) Ca(OH) 2 (s) + 2H2 (g)
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