Mixtures: solutions and suspensions.

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.