Zusammenfassung der Ressource
Chemistry
- An element is a stubstance made of
only 1 type of atom
- They are all listed in the
periodic table
- They all have a name
and a symbol
- A compound is a pure substance made of 2
or more elements chemically reacted together
- E.G copper sulphate - CuSO4
- A mixture is 2 or more elements or compounds
which are mixed together, not chemically reacted,
which can be seperated
- E.G Sand and salt water
- What are the seperation techniques?
- Evaporation
- Separating a solid from a
solution
- Crystalisation
- Separating a solid from a
solution
- Distillation
- Separating a mixture of
liquids with different
boiling points
- Fillteration
- Separating a liquid from
a solid from a solution
(the solid has to be
insoluable)
- Key Words
- Solute
- Solid that is dissolved
- Solvent
- Liquid the solid dissolves in
- Solution
- Mixture of solid dissolved in liquid
- Soluble
- Disolves
- Insoluble
- Doesnt dissolve
- Chromatography is a technique for
the separation of a mixture by
passing it in solution or suspension
through a medium in which the
components move at different
rates.