When ethylene glycol is treated with sulfuric acid, 1,4-dioxane is obtained. Propose a mechanism for this transformation.

it's c. elements are placed in rows based on how may valencies electrons have.

b. examine and describe cells

the answer is:  

line graphs show patterns in data with variables that change over time; whereas, circle graphs show data as parts out of a whole (such as out of 100%).

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.