In the reaction mechanism below, which substance is acting like a catalyst and is it homogeneous or heterogeneous? step 1 2n2og + cl2(g) → 2n2(g) + 2clo(g) step 2 2clo(g) → cl2(g) + o2 (g)

An electrons position cannot be known precisely only it's probability of being in a certain location can be known

2. how is heavy water different from normal water

Although respiratory organs vary across different organisms, they all contain respiratory surfaces that have a large surface area and are extremely thin. explain why having an extremely thin respiratory surface with a large surface area is advantageous for the process of gas exchange