Final answer:
Solid calcium hydride reacts with water to form calcium hydroxide (aqueous) and hydrogen gas.
Step-by-step explanation:
The reaction between solid calcium hydride, CaH2, and water, H2O, produces calcium hydroxide (aqueous) and hydrogen gas. The balanced chemical equation for this reaction is:
CaH2(s) + 2H2O(l) → Ca(OH)2(aq) + 2H2(g)
In this reaction, the calcium hydride reacts with water to produce calcium hydroxide, which is soluble in water, and hydrogen gas.