The ability of a substance to dissolve in another substance is called solubility.

Here's a breakdown:

* Solubility: A measure of how much of a substance (solute) can dissolve in a given amount of another substance (solvent) at a specific temperature.

* Solute: The substance being dissolved.

* Solvent: The substance doing the dissolving.

For example:

* Sugar is soluble in water. This means that sugar can dissolve in water to form a sugar solution.

* Oil is not soluble in water. This means that oil and water will not mix, but will form separate layers.

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