Types of Solutions: Saturated, Unsaturated, and Supersaturated

You stir sugar into a cup of hot tea until no more dissolves. What will likely happen if you let the solution cool?

• It will stay the same

• Crystals will form

• It becomes diluted

• Solute will disappear

A student says: “I added solute to a solution and it disappeared.” What conclusion can you draw?

• It’s a supersaturated solution

• It’s a saturated solution

• It’s an unsaturated solution

• It’s a suspension

In a science experiment, Group A heated water before adding salt. Group B used cold water. Who created a more concentrated solution and why?

• Group A – heat increases solubility

• Group B – cold preserves solute

• Group A – salt dissolves faster in cold

• Group B – cold traps the solute

How can you turn a saturated solution into an unsaturated one?

• Remove solute

• Cool it down

• Add more solute

• Add more solvent

A student notices crystals forming at the bottom of their solution after it cooled. What does this indicate?

• Solvent evaporated

• Solution is unsaturated

• Crystals formed due to oversaturation

• Stirring was too fast

If a solution is labeled “supersaturated,” what must have happened during its preparation?

• The solute was frozen

• The solute was added while cooling

• The solute was added at room temperature

• The solute was added to a heated solvent

Which best describes a way to test if a solution is saturated?

• Taste it

• Add more solvent

• Add solute and check if it dissolves

• Heat it quickly

If a substance forms a supersaturated solution when heated, what can you conclude about its solubility?

• It decreases with temperature

• It remains constant

• It increases with temperature

• It cannot dissolve in water

Which solution would most likely show crystal formation upon cooling?

• Saturated

• Unsaturated

• Supersaturated

• Diluted

Which action can change an unsaturated solution to a saturated one?

• Remove solvent

• Add more solute until no more dissolves

• Add more solvent

• Heat the solution