Mixtures and Solutions

Front

What is a mixture?

Back

A mixture is a combination of two or more substances where each substance retains its own properties.

Front

What is a solution?

Back

A solution is a homogeneous mixture where one substance (the solute) is dissolved in another (the solvent).

Front

How can you separate a mixture of sand and salt?

Back

You can separate sand and salt by adding water to dissolve the salt, then filtering the mixture to remove the sand.

Front

What is relative density?

Back

Relative density is the ratio of the density of a substance to the density of a reference substance, typically water.

Front

What is the role of a hot plate in separating mixtures?

Back

A hot plate can be used to heat a mixture, causing components to evaporate or dissolve, aiding in separation.

Front

What is the difference between a homogeneous and heterogeneous mixture?

Back

A homogeneous mixture has a uniform composition throughout, while a heterogeneous mixture has visibly different substances or phases.

Front

What is an example of a heterogeneous mixture?

Back

An example of a heterogeneous mixture is a salad, where the individual ingredients can be seen and separated.

Front

What is an example of a homogeneous mixture?

Back

An example of a homogeneous mixture is saltwater, where the salt is completely dissolved in the water.

Front

How can you separate oil and water?

Back

Oil and water can be separated using a separating funnel or by allowing them to settle, as they have different densities.

Front

What is filtration?

Back

Filtration is a process used to separate solids from liquids or gases using a filter medium that allows only the fluid to pass.