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Chemistry/Equations and Stoichiometry
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Percent Composition by Mass

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What is the percent composition by mass of H₂SO₃?
A

33% H, 16% S, 51% O

B

2.5% H, 39% S, 58.5% O

C

58.5% H, 39% S, 2.5% O

D

2.5% H, 58.5% S, 39% O

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