Respuesta :
Answer:
After the solution is heated, but before additional solute is added
Explanation:
An unsaturated solution is a solution that contains less solute than it can normally hold at a given temperature. Hence an unsaturated solution can still dissolve more solute.
When the solution is heated, the saturated cold solution becomes an unsaturated hot solution which is capable of dissolving more solute at this point.
Once more solute is dissolved, the solution becomes saturated again just before it begins to cool since no more solute dissolves in the solution at some point before cooling and addition of seed crystals.
After the solution is heated and more solute is added, but before it is cooled is the point the solution was unsaturated.
What is Unsaturation?
This is referred to as the point in which a solution can still dissolve more of a substance when added to it.
In this case, the solution was still unsaturated when the solution was heated and more solute is added, but before cooling took place.
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