Final answer:
If the solubility limit of CaCl₂ 2 H₂O in boiling water is reached, the water would not boil if it starts at 20°C.
Step-by-step explanation:
When the solubility limit of a solute is reached in a solvent, it means that no more solute can dissolve in the solvent at that specific temperature. In this case, the solubility limit of CaCl₂ 2 H₂O in boiling water is 152 g CaCl₂ 2 H₂O in 100 g water.
If you dissolved enough CaCl₂ 2 H₂O in water to reach this solubility limit, the water would not boil if the water was initially at 20°C. This is because the solubility limit is determined at boiling temperature, so the solution would need to be heated to the boiling point for the solute to fully dissolve.
Learn more about solubility limit of CaCl₂ 2 H₂O in boiling water