Calcium Oxide Reacts with Water in a Combination Reaction to Produce

question 150

Multiple Choice

Calcium oxide reacts with water in a combination reaction to produce calcium hydroxide: CaO (s) + H₂O (l) → Ca(OH) ₂ (s)
A 4.00-g sample of CaO is reacted with 3.86 g of H₂O. How many grams of water remains after completion of reaction?

• A)0.00
• B)0.00793
• C)2.57
• D)1.04
• E)0.143

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