H₂(g) will form when Fe is placed in 1.0 M HCl.

Question

Quizplus · Accepted Answer

When Fe is placed in 1.0 M HCl, it will react to form FeCl2 and release hydrogen gas. The balanced equation for the reaction is: Fe(s) + 2 HCl(aq) → FeCl2(aq) + H2(g) The FeCl2 formed in the reaction is in the form of ions, Fe2+ and 2 Cl-. Therefore, the solution will contain FeCl2 as well as H+ and Cl- ions from the HCl. The H+ ions will react with water to form hydronium ions, H3O+. The resulting solution will have a pH of less than 7 due to the presence of the H3O+ ions from the HCl. Therefore, it can be represented as H₂(g) according to the Brønsted-Lowry acid-base theory.

H2(g) Will Form When Fe Is Placed in 1

H₂(g) Will Form When Fe Is Placed in 1