Some students places a clear solution in a beaker and heated it for 40 minutes. What evidence shows that the solution contained matter that could not be seen

can you attach the

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.

b.false that your answer