Calcium Hydride (CaH₂) Is So Reactive with Water That It

question 87

Multiple Choice

Calcium hydride (CaH₂) is so reactive with water that it can be used to remove traces of water from solvents other than water. If 24.6 g of calcium hydride is added to a large volume of solvent that contains 14.0 g of water, which of these remains, water or calcium hydride, after the reaction is complete? The reaction is: CaH₂(s) + 2H₂O( )  Ca(OH) ₂(s) + 2H₂(g)

• A) CaH₂ will be left over.
• B) Water will be left over.
• C) Both will be completely consumed.
• D) There is no way to tell.

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Definitions:

Organic Product

A compound containing carbon atoms bonded to other elements such as hydrogen, often produced through organic reactions.

Structure

The arrangement of atoms or molecules in a substance that defines its chemical and physical properties.

Grignard Reagent

A class of organometallic compounds that are used in the formation of carbon-carbon bonds in chemical synthesis.

Keto Alcohol

A compound containing both a ketone (carbonyl group) and an alcohol (hydroxyl group) functional group.