Mixtures: Solutions, suspensions + miscible and immiscible liquids.

Not all things are pure substances. Some are mixtures i.e. contains more than one substance.

E.g.                             A mixture of water and carbon dioxide           (liquid + gas)

Solutions

When the 2 substances totally mix it is called a solution.

E.g. Solute + Solvent = Solution

         (sugar) + (water) = Solution

We then say sugar is soluble in water, it has dissolved.

Suspensions

Sometimes when we mix substances they stay in clusters. We therefore say it is insoluble in water.

E.g. Chalk + Water = Suspension

Eventually the particles sink to the bottom to form sediment.

Mixtures In Liquids

When two liquids totally mix they are said to be miscible.

An example of this would be alcohol and water.

When to liquids do not mix they are said to be immiscible.

An example would be oil and water:

When cooking oil is shaken in water it turns it milky. This mixture is called emulsion.

  Kevin Boyle: Loreto College, Coleraine.