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chemistry

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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?

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