Calcium Oxide Reacts with Water in a Combination Reaction to Produce

question 107

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 2.00-g sample of CaO is reacted with excess water and 2.14 g of Ca(OH) ₂ is recovered.What is the percent yield in this experiment?

• A)107
• B)1.07
• C)2.88
• D)81.1
• E)93.3

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