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Question
Sodium oxide reacts with water to produce sodium hydroxide. Suppose 18.6g of sodium oxide is combined with 33.7g of water. When the reaction is complete, all the sodium oxide has been consumed. According to the law of conservation of mass, which is a true statement?A) The mass of sodium hydroxide produced must equal 52.3g.
B) The mass of unreacted water must equal 15.1g.
C) The mass of sodium hydroxide produced must equal 18.6g.
D) The mass of water consumed must equal 18.6g.
E) The mass of sodium hydroxide produced plus the mass of unreacted water must equal 52.3g.
Answer
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