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How many grams of O 2 are required to use up 250 kcal in the following reaction? 4Al (s) + 3O 2 (g) x2Al 2

How many grams of O₂ are required to use up 250 kcal in the following reaction?

4Al (s) + 3O₂ (g) x2Al₂O₃ (s) H = 65.3 kcal/mol

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