How much of the excess reactant remains after the reaction?
A: 19.8 g
B: 32.4 g
C: 28.6 g

i am also positive it is B

Explanation:

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answer:

the reaction is type of combination reaction.

explanation:

on the product side, there are 2 molecules of bonded to fe   which means one atom of fe are combined two molecules of . so, balanced chemical equation becomes :

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.