Which property describes a liquid's ability to dissolve into another liquid?

The ability of a liquid to dissolve in another liquid is described by the term miscibility. Miscibility refers specifically to the extent to which two substances can mix and form a homogeneous solution at a given temperature and pressure. When two liquids are miscible, they can completely dissolve in each other in any proportion without separating into distinct layers.

For example, ethanol and water are completely miscible, which means they can be mixed in any ratio to form a uniform solution. On the other hand, oil and water are not miscible, as they do not mix well and instead form separate layers.

Solvation refers to the interaction between a solute and solvent molecules, where solvent molecules surround and interact with solute particles. Solubility, while closely related, generally refers to the amount of solute that can dissolve in a solvent at a given temperature before reaching a saturation point. Saturation indicates a state where no more solute can dissolve in the solvent at a specified temperature and conditions. In summary, the term that accurately captures the concept of liquids being able to dissolve in one another is miscibility.