What will holding the temperature constant while adding more solute to a solution that already has solute crystals at the bottom of the container do?

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When a solution has solute crystals at the bottom of the container, it means that no more of the solute will dissolve at that temperature in that solution.

The solution is stated to be saturated.

If the temperature is kept constant and more of solute is added to the solution, then it will not dissolve into the solution which is already saturated with the solute.

Thus the addition of more solute to a solution that already has solute crystals at the bottom of the container at a constant temperature will result in that solute also settling at the bottom of the container.

4d^55s^1 ( third choice)