When 20 grams of potassium chlorate, kclo3, is dissolved in 100 grams of water at 80 ºc, the solution can be correctly described as?

Answer is: the solution can be correctly described as unsaturated.
Solubility of potassium chlorate (KClO₃) at 100 grams of water at 80°C is 37.5 g, that means that all 37.5 g is completely dissolves, this is the saturated solution.
If we add 20 grams of potassium chlorate, there is less solute than the saturated solution, so this is unsaturated solution.

Heating it up with cause a quicker reaction time