What is the definition of weight

The force with which an object near the Earth or another celestial body is attracted toward the center of the body by gravity. An object's weight depends on its mass and the strength of the gravitational pull.

Explanation: just tell me if you need another definition

Can you be a little more specific Like atomic weight or molecular weight ? I have taken Ap Chemistry so I know its not easy but if you can specify I may be able to help you.

Explanation:

for points guys

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.