What is the correct answer please

I think it's the second answer --If you increase the acidity..

I hope answer I can answer your question!

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.

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;