Identify the following
as a compound, element or mixture.
The diagrams A to D on the right represent the particles in different substances. Which represent a:
- pure compound?
Inks used in pens and texta colours appear to be composed of a single dye particle. In actual fact, the inks used in many pens are mixtures of many different inks. We can separate the different inks into their component colours by a method called thin film chromatography.
On the right is an example
of three chromatograms.
Identify which are mixtures and which are pure compounds.
Click to go to the activity on thin film chromatography.