Can y’all tell me what’s an atom and a mole

Atom is the smallest component of an element. It has neutrons and protons in its nucleus (sphere in the middle) and electrons revolving around the nucleus.

Molecule are made up of atoms that are held together with chemical bonds

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.