Bo red anyone want to tal_k with me?

Kc = 0.040 for the system below at 450oc. if a reaction is initiated with 0.40 mole of cl2 and 0.40 mole of pcl3 in a 2.0 liter container, what is the equilibrium concentration of cl2 in the same system? pcl5(g) ⇄ pcl3(g) + cl2(g)

How could a student test the effect of removing heat from a gas that is stored in a sealed container? what must occur in order for matter to change states?

What does a numerical subscript following an element in a chemical formula mean?