Question

which best describes solubility?
o the speed at which a substance dissolves
o the ability of one substance to dissolve in another
o the amount of surface area per a given mass
o the temperature at which subtances become a mixture

Explanation:

Solubility is defined as the ability of a substance (solute) to dissolve in another substance (solvent). It's not about the speed of dissolving, surface - area to mass ratio, or the temperature of mixture - formation.

Answer:

the ability of one substance to dissolve in another