One of the twenty protein-building amino acids.
One of the isomers of pentane, used as a solvent.
A liquid with a characteristic unpleasant odour and a low boiling point.
This animation presents the regions, counties and cities of Hungary.
Colourless, odourless gas used as a standard in NMR spectroscopy.
A crystalline substance, an extremely important material in the electronics industry ...
The compound of hydrogen and oxygen. Colourless, odourless liquid; heavier than water.
A colourless gas with a pungent odour. It is widely used in industry.
The first member in the homologous series of 1-alkenes.
The first member of the homologous series of alkyne hydrocarbons.
A reddish-brown toxic gas, very reactive due to its unpaired electron.
One of the oxides of sulphur, forms sulphuric acid with water.
The sixth member in the homologous series of straight-chain alkanes.
A component of DNA, it contains one less hydroxyl group than β-D-ribose.
One of the hydrogen halides, it is used for the production of alkyl bromides.
The simplest aromatic amine. Its scientific name is phenylamine.
A colourless, toxic gas with the characteristic odour of rotten eggs. It occurs in...
One of the isomers of butene.
It is also used as a food additive, limescale and rust remover.
There are ten national parks in Hungary.