Covalent bonds in benzene molecules
In benzene there are sigma bonds and delocalized pi bonds between carbon atoms.
An exercise about the groups and structure of organic nitrogen compounds.
In this video we are experimenting with food colourings.
We observe whether a razor blade can float on the surface of different liquids.
Change in the colour of the cobalt(II) chloride solution due to heating and cooling.
Non-polar substances dissolve in non-polar solvents while polar substances dissolve in polar...
Examining the colour of cobalt(II) chloride in water and hydrochloric acid.
The dissolution of zinc in hydrochloric acid produces hydrogen gas.
An exercise about the groups and structure of mono-, di- and polysaccharides.