Concentration and Color Intensity Quiz

What is the main problem the teacher faces with the beaker of red food coloring?

• The beaker is too full.

• The color is not dark enough.

• The food coloring is expired.

• The beaker is leaking.

What is one method to increase the concentration of a solution without adding more solute?

• Shake the container.

• Remove some of the water.

• Stir the solution.

• Add more water.

Why can't the teacher simply pour out some of the water to increase concentration?

• It would also remove some food coloring.

• It would make the solution too hot.

• The water is needed for another experiment.

• The beaker might break.

What process does the teacher use to remove water from the solution?

• Adding salt to the solution.

• Freezing the solution.

• Filtering the solution.

• Boiling the solution.

What is the result of boiling the solution in terms of color?

• The color becomes lighter.

• The color remains the same.

• The color becomes a darker shade of red.

• The color turns blue.