Calcium Oxide Reacts with Water in a Combination Reaction to Produce

question 123

Multiple Choice

Calcium oxide reacts with water in a combination reaction to produce calcium hydroxide:
CaO(s) + H₂O(l) → Ca(OH) ₂(s)
In a particular experiment,a 5.00-g sample of CaO is reacted with excess water and 6.11 g of Ca(OH) ₂ is recovered.What is the percent yield in this experiment?

• A)122
• B)1.22
• C)7.19
• D)92.5
• E)81.9

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