If you have a 4.00 mole sample of a substance, how many representative particles does this represent?

Explanation:

According to Avogadro's number, in 1 mole there are atoms or particles.

Since, it is given that there is 4.00 mole sample of a substance. Therefore, calculate the number of representative particles present in it as follows.

                  atoms/mol

                 = 24.092 atoms

Thus, we can conclude that there are 24.092 atoms in a 4.00 mole sample of a substance.

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.