Help me with this question please.

it's the first one liquid because the atoms are close together with no regular arrangement vibrant but generally do not move from place to place

gas particles are normally all over the place and if you put them in a sealed container the particles will jump around and be all of the container

solid particles with set all together and not move and it will not try to mold to the shape of the container

liquid particles move around and try to shape to the container

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.