What might common French citizens have liked about the metric system when it was adopted? What might they have disliked? Why?

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.

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a