If 20 g of substance b dissolves in 100 g of water at 40°c, the solution is considered to be unsaturated.
What is an unsaturated solution?
A solution in which more solute can be dissolved.
Unsaturated solutions are solutions in which the amount of dissolved solute is less than the saturation point of the solvent.
Thus, If 20 g of substance b dissolves in 100 g of water at 40°c, the solution is considered to be unsaturated.
Learn more about the unsaturated solution here:
https://brainly.com/question/23374939
#SPJ4