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Calcium Oxide Reacts with Water in a Combination Reaction to Produce

Question 55

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 1.50-g sample of CaO is reacted with excess water and 1.48 g of Ca(OH) 2 is recovered. What is the percent yield in this experiment?


A) 99
B) 0.99
C) 2.16
D) 74.8
E) 101.2

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