Which process separates salt and sand from water and sand mixture???

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)

If a polyatomic ionic compound has gained two hydrogen ions, then how does its name begin?

The grooves or folds of the brain are called