Chemistry help needed! (picture included)

Use a fine, crystalline solute and stir vigorously

Explanation:

It is better if it is fine instead of coarse since this will provide more surface area.  If there is more surface area, the crystals will dissolve faster.

You also have to stir the solution vigorously to keep all of the crystals exposed to the solvent.

Use a fine, crystalline solute and stir vigorously

Explanation:

Hope this helps

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