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"?

1 Answer
Meave60
May 5, 2018

7

Explanation:

Balanced equation

"2FeS"_2 + "5O"_2"rarr"Fe"_2"O"_2 + "4SO"_2"

The reactants are on the left-hand side of a chemical equation. So "FeS"_2 and "O"_2" are the reactants for this equation. So add the coefficients 2 and 5 to get 7.

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