Calcium Hydride (CaH₂, 42 $\rightarrow$ Ca(OH)₂ (S) + 2H₂ (G)
A)8

Multiple Choice

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) $\rightarrow$ Ca(OH) ₂ (s) + 2H₂ (g)

A) 8.24 g CaH₂ will be left over.
B) 5.26 g H₂O will be left over.
C) 16.4 g CaH₂ will be left over.
D) 3.45 g H₂O will be left over.
E) Both are completely consumed.