Calcium Oxide Reacts with Water in a Combination Reaction to Produce

question 97

Multiple Choice

Calcium oxide reacts with water in a combination reaction to produce calcium hydroxide: CaO(s) + H₂O(l) ? $\mathrm { Ca } ( \mathrm { OH } ) _ { 2 }$ (s)
A 4.50 g sample of CaO is reacted with 4.34 g of H₂O.How many grams of water remain after the reaction is complete?

• A)0.161 g
• B)0.00893 g
• C)1.45 g
• D)0.241 g
• E)2.89 g

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