Middle Edge Tape your filter paper to the back of your lab handout. Write a definition of chromatography. Apply to the paper strips with a toothpick. Apply to the chromatogram with a toothpick. Any of the separated colors could simply be remixed in water.
Physical changes are reversable.
Chromatography is a method of separation for pigments or dyes by using different rates of evaporation for the component substances. Chemists can use more complex forms of this method to analyze a sample to determine its contents. Homogeneous matter is the same throughout and in only one phase of matter. Heterogeneous matter is composed of a mixture of substances that can usual been seen with the naked eye. Heterogeneous matter can be separated by physical changes.