Solutions and Suspensions in Chemistry

Mrs. Leong's science tutorial explores dissolving solids into liquids, focusing on creating solutions and suspensions. Through experiments with Epsom salts, table salt, and coffee grounds, the video demonstrates how different materials interact with water, highlighting the concepts of solutions and suspensions.

What is the main difference between a solution and a suspension?

• A solution is a mixture where the solid is visible.

• A suspension is a mixture where the solid is completely dissolved.

• A solution is a mixture where the solid is completely dissolved.

• A suspension is a mixture where the solid is not visible.

What was the main challenge faced when dissolving Epsom salts in water?

• The Epsom salts changed color.

• The Epsom salts did not dissolve completely.

• The Epsom salts evaporated.

• The Epsom salts turned into a gas.

What tool did Mrs. Leong use to help dissolve the Epsom salts?

• A chopstick

• A whisk

• A spoon

• A fork

What was the result of mixing table salt with water?

• The table salt formed a suspension.

• The table salt turned into a solid block.

• The table salt completely dissolved, forming a solution.

• The table salt did not dissolve at all.

What was observed when coffee grounds were mixed with water?

• The coffee grounds evaporated.

• The coffee grounds floated and formed a suspension.

• The coffee grounds dissolved completely.

• The coffee grounds formed a solution.

Why did the coffee grounds not form a solution with water?

• They were too small.

• They were too light.

• They did not dissolve in water.

• They were already dissolved.

What happens when a solution becomes supersaturated?

• The solution becomes less concentrated.

• The solution evaporates.

• The solution can hold more solute than usual.

• The solution cannot dissolve any more solute.

What was the outcome of using too much Epsom salt in the experiment?

• It turned into a gas.

• It evaporated completely.

• It became a supersaturated solution.

• It formed a perfect solution.

Which of the following is an example of a suspension?

• Coffee grounds in water

• Sugar dissolved in tea

• Vinegar and oil

• Saltwater

What is the key factor that determines whether a mixture is a solution or a suspension?

• The temperature of the liquid

• The smell of the mixture

• The color of the liquid

• Whether the solid is completely dissolved