You are making a solution of calcium chloride dissolved in water. you add solid, stir, and it dissolves. you add just a spatula tip full, stir, and the solid does not dissolve. how could you describe the solutions before and after adding the spatula tip amount

When small amount of solute is added to a solvent and if it readily dissolves then this type of solution is known as an unsaturated solution.

For example, in the given situation when calcium chloride is first dissolved in water then it completely dissolves and this makes the solution unsaturated.

And, a saturated solution is defined as a solution which contains maximum amount of solute.

So, when a spatula tip full of calcium chloride is added into water then it is unable to dissolve the solute. This means the solution has become saturated.

Thus, we can conclude that solution before adding the spatula tip amount is unsaturated and after adding the spatula tip amount the solution becomes saturated.

Before adding the spatula tip amount: saturated solution.

After adding the spatula tip amount: super saturated solution.

Explanation:

A saturated solution is when the solute can dissolve in the solvent. For example, if you have an amount of water and you put calcium chloride into the water, and it dissolves, the solution is saturated.

A supersaturated solution is when you put the calcium chloride into the solvent and the solute doesn't dissolve.

So,

Before adding the spatula tip amount: the solution is saturated.

After adding the spatula tip amount: the solution is super saturated.