chemistry

posted by Zoe

A gaseous mixture containing 5 moles of H2 and 7 moles of Br2 reacts to form HBr. Write a balanced chemical equation. Which reactant is limiting? What is the theoretical yield in moles? What is the theoretical yield for this reaction in grams? How many moles of excess reactant are left over? How many grams of excess reactant are leftover?

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