Questions asked by Jellybean
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What is the sum of the coefficients of the reactants for the balanced chemical equation #"2FeS"_2 + "5O"_2"##rarr##"Fe"_2"O"_2 + "4SO"_2"#?
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What is the sum of the coefficients of the products for the balanced chemical equation #"2FeS"_2 + "5O"_2"##rarr##"Fe"_2"O"_2 + "4SO"_2"#?
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What is the number of moles in 8,5g of NH_3?