A 14 G Sample of Calcium Is Reacted with 3

question 113

Multiple Choice

A 1.4 g sample of calcium is reacted with 3.2 g of oxygen.The only product after the reaction is 1.96 g of CaO.How many grams of oxygen remains unreacted?

• A)0.56 g
• B)0.224 g
• C)2.64 g
• D)0.264 g
• E)0.203 g

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