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What Mass of Excess Reactant Remains at the End of the Reaction

Question 120

Multiple Choice

What mass of excess reactant remains at the end of the reaction if 90.0 g of SO₂ are mixed with 100.0 g of O₂? 2SO₂ + O₂→ 2SO₃

A) 10.0 g
B) 12.5 g
C) 22.5 g
D) 55.0 g
E) 77.5 g

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