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AP Chemistry/Unit 1: Atomic Structure and Properties
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Stoichiometric Calculation Of Atoms
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In a reaction, 4.25 g of aluminum completely reacts with excess oxygen to form aluminum oxide. How many oxygen atoms participated in this reaction?

A

1.42 × 10²³ atoms

B

2.84 × 10²³ atoms

C

9.46 × 10²² atoms

D

4.73 × 10²² atoms

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