Which statement is NOT true for an electrochemical cell? An oxidation-reduction reaction must occur

The metals that form the electrodes must be identical

Nonparticipating ions must flow to keep the electrons electrically neutral

Electrons must flow through a separate path from the reaction solutions

Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.