Exploring Solutions: Solute, Solvent, and Separation Methods

The video tutorial explains the concepts of solute, solvent, and solutions, using seawater as an example. It discusses the solubility of substances like sugar and sand in water, and how solute affects the volume of a solution. The concept of saturated solutions is introduced, followed by various methods for separating soluble and insoluble substances, including sedimentation, decantation, filtration, and distillation.

Why does sugar dissolve in water?

• Because it's soluble in water

• Because it's a solid

• Because it's a liquid

• Because it reacts chemically with water

What is a solution?

• A mixture where substances are not visible

• A mixture where substances are completely dissolved

• A solid mixed with a liquid

• A liquid mixed with a gas

What is the role of a solvent in a solution?

• It solidifies the solute

• It reacts with the solute

• It evaporates to leave the solute

• It dissolves the solute

What happens to the level of a solution when a solute is added?

• It remains almost the same

• It fluctuates unpredictably

• It increases significantly

• It decreases significantly

What is a saturated solution?

• A solution that can dissolve more solute

• A solution that cannot dissolve more solute

• A solution made only with liquids

• A solution made only with solids

How can insoluble substances be separated from a mixture?

• Both A and C

• Distillation

• Filtration

• Decantation

What is the process of sedimentation?

• Pouring water into another glass

• Heating a solution

• Dissolving substances in water

• Insoluble substances settling at the bottom

What is the purpose of filtration?

• To mix substances more thoroughly

• To dissolve substances in water

• To heat a solution

• To separate insoluble substances from water

What does distillation separate?

• A gas from a liquid

• A liquid from a solid

• A liquid from a solution

• Insoluble substances from water

What method is used to separate soluble substances from water?

• Decantation

• Distillation

• Sedimentation

• Filtration