Calcium Hydride (CaH₂,42 $\to$ Ca(OH)₂(s)+ 2H₂(g)
A)8

question 43

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) + 2H₂O( ) $\to$ 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 comsumed.

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