Mixtures and other things Flashcards
Mixtures are substances that are not
Chemically joined up
Such as the gases in air
Name a common method of making a mixture
Dissolution
The solid being dissolved is called
The solute
The liquid a solid is dissolved into is called
The solvent
The mixture of solute and solvent is called
The solution
What does soluble mean?
It will dissolve
What is it called when you cannot dissolve any more solute at that temperature.
Saturated
How do you increase the solubility?
Increase the temperature
Why does more solute dissolve in solvent at higher temperatures ?
Because particle move faster
Can solute dissolve in all solvents?
No
Eg salt dissolves in water but not petrol
Name 4 separation techniques to separate out mixtures.
Filtration
Evaporation
Chromatography
Distillation
Name 3 uses of chromatography
Separating inks
Identifying blood samples
Investigating chlorophyll
Simple distillation can be used for separating
A liquid from a solid
Fractional distillation separates out
A. Mixture of liquids
Give an example of simple distillation
Separating water from seawater