Ijust need some getting the answers for this portfolio, but if someone could not only give the answers, but also explain how to get those answers so i better understand how to do this it would be greatly appreciated.

The balanced chemical reaction has equal number of atoms in reactant side as well as product side.

Explanation:

The balanced chemical reactions is as follows.

1.

2.

3.

4.

idk what the question is about

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.