Crystals are made using supersaturated solutions of solids in water. These solutions hold more of the solute than they would at room temperature. How are these solutions made? (1 point)

Question

Responses

The water would need to be chilled to a lower temperature, which would give molecules and ions more kinetic energy, increasing solubility.
The water would need to be chilled to a lower temperature, which would give molecules and ions more kinetic energy, increasing solubility.

The water would need to be heated to a higher temperature, which would take kinetic energy away from molecules and ions, increasing solubility.
The water would need to be heated to a higher temperature, which would take kinetic energy away from molecules and ions, increasing solubility.

The water would need to be chilled to a lower temperature, which would take kinetic energy away from molecules and ions, increasing solubility.
The water would need to be chilled to a lower temperature, which would take kinetic energy away from molecules and ions, increasing solubility.

The water would need to be heated to a higher temperature, which would give molecules and ions more kinetic energy, increasing solubility.
The water would need to be heated to a higher temperature, which would give molecules and ions more kinetic energy, increasing solubility.

Answer 1

The correct response is:

"The water would need to be heated to a higher temperature, which would give molecules and ions more kinetic energy, increasing solubility."

Heating the water increases the solubility of most solids, allowing more solute to dissolve. Once a supersaturated solution is formed by dissolving the solute at a higher temperature, it can then be cooled slowly to maintain the supersaturated state and allow for crystal formation.