Mixtures, Solution, Suspension and Colloid

What type of mixture is a solution?

• Heterogeneous mixture (when you CAN see the different parts)

• Homogeneous mixture (it looks the same throughout)

• Colloidal mixture

• Suspension

Which of the following is a characteristic of particles in a solution?

• They settle down over time.

• They can be separated by filtration.

• They scatter light.

• They do not settle down.

BONUS: What is the difference between a heterogenous and homogenous mixture?

• Homogeneous mixtures are always solid; heterogeneous mixtures are always liquid.
• Homogeneous mixtures have a uniform composition; heterogeneous mixtures have distinct, separate components.
• Homogeneous mixtures have distinct, separate components; heterogeneous mixtures have a uniform composition.
• Homogeneous mixtures can be easily separated into their components; heterogeneous mixtures cannot.

What is a key characteristic of a suspension?

• It is a homogeneous mixture.

• Its particles are uniformly distributed.

• Its particles settle down on standing.

• Its particles do not scatter light.

Which characteristic describes suspensions?

• They are homogeneous mixtures.

• Their particles have a size between 1-1000 nm.

• Their particles separate on standing.

• They cannot be separated by filtration.

What is the typical particle size range for colloids?

• Less than 1 nm

• Between 1-1000 nm

• Greater than 1000 nm

• Varies greatly depending on the mixture

Which type of mixture exhibits the Tyndall effect?

• Solutions only

• Suspensions only

• Colloids only

• Both suspensions and colloids

Which type of mixture can be separated by filtration?

• Solutions

• Colloids

• Suspensions

• Both solutions and colloids