Mixtures and Solutions

Front

What is a colloid?

Back

A colloid is a mixture where small particles are dispersed throughout a medium but do not settle out. Examples include fog and milk.

Front

What are the components of a solution?

Back

Solutions are composed of solutes (the substance being dissolved) and solvents (the substance doing the dissolving).

Front

What is a heterogeneous mixture?

Back

A heterogeneous mixture is one where the different components can be seen and are not uniformly distributed, such as salad or muddy water.

Front

What does 'homogeneous' mean in terms of mixtures?

Back

Homogeneous means 'the same throughout', indicating that the composition is uniform, like in a saltwater solution.

Front

What is the behavior of particles in a colloid?

Back

Colloid particles are large enough to scatter light waves but not large enough to settle out of the mixture.

Front

Give an example of a homogeneous mixture.

Back

An example of a homogeneous mixture is vinegar or air.

Front

What is the difference between a solution and a suspension?

Back

A solution is a homogeneous mixture where solutes are completely dissolved, while a suspension contains larger particles that can settle out over time.

Front

What is an example of a heterogeneous mixture?

Back

An example of a heterogeneous mixture is a salad or a mixture of sand and salt.

Front

What is the Tyndall effect?

Back

The Tyndall effect is the scattering of light by particles in a colloid, making the path of the light visible.

Front

What is a solvent?

Back

A solvent is the substance in which the solute is dissolved to form a solution, commonly water.