Solid Aluminum and Gaseous Oxygen React in a Combination Reaction

question 105

Multiple Choice

Solid aluminum and gaseous oxygen react in a combination reaction to produce aluminum oxide:

In a particular experiment, the reaction of 2.5 g of Al with 2.5 g of O₂ produced 3.5 g of Al₂O₃. The
% yield of the reaction is .

• A) 47
• B) 66
• C) 74
• D) 26
• E) 37

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Extreme fear and/or avoidance of social situations.

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The action of keeping away from or not doing something, often as a way to deal with fear or anxiety.

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