We can see that points A, B, C and D are all still coplanar points. Point E is not coplanar with the original four points. But if I pick any group of three of the points, even a group containing point E, those three points will be coplanar. The reason is the statement given above - any three points in 3-dimensional space determine a plane.
Definition of solubility. 1  1 : the quality or state of being soluble. 2  2 : the amount of a substance that will dissolve in a given amount of another substance.
Solubility is a chemical property referring to the ability of a given substance, the solute, to dissolve in a solvent. Dissolution, or solvation, is the process by which a solute interacts with and becomes dissolved in a solvent due to an increase in stability.