Heterogeneous mixture

The video tutorial explains the concept of substances that remain physically separate and can be easily separated by physical means such as settling or filtration. It provides examples of heterogeneous mixtures like oil and water, silt suspended in water, and beach sand.

What is a characteristic of substances that remain physically separate?

• They remain distinct and separate.

• They can be chemically combined.

• They cannot be separated by any means.

• They are always in a gaseous state.

Which of the following is a method to separate substances physically?

• Settling

• Electrolysis

• Oxidation

• Combustion

Which of the following is NOT a method of physical separation?

• Distillation

• Settling

• Filtration

• Melting

What is an example of a heterogeneous mixture?

• Salt dissolved in water

• Oil and water

• Pure gold

• Carbon dioxide gas

Which of these mixtures can be easily separated by physical means?

• Vinegar

• Sugar solution

• Oil and water

• Air