A colourless liquid with an odour similar to benzene. The monomer of polystyrene.
The fifth member in the alkane homologous series. A colourless, combustible liquid.
An aldehyde which is an important raw material and intermediate product in industry.
A basic heterocyclic organic compound; a colourless, pungent toxic liquid.
The compound of hydrogen and oxygen. Colourless, odourless liquid; heavier than water.
One of the most important esters, produced by the reaction of ethanol and acetic acid.
The sixth member in the homologous series of straight-chain alkanes.
The presence of hydronium ions relative to hydroxide ions determines a solution´s pH.
The second member in the homologous series of straight-chain alkanes.
Colourless, heavier-than-air gas with a pungent odour. It forms white fumes in moist air.
The best known alcohol, important in the food industry.
A triol that is often used as an ingredient of creams and ointments.
The simplest peptide, formed from two glycine molecules by a peptide bond.
A compound ion formed when a phosphoric acid molecule releases a proton.
One of the raw materials of traditional photography.
A compound ion, the main source of nitrogen for plants.
Typical Central European flats in the 1950s consisted of a single room, a kitchen and a bathroom.
The construction of ´Libelle´ (Dragonfly) is one of the milestones of (Hungarian) aviation history.
A white, waxy substance, a carboxylic acid of high carbon number.
A circular, domed, portable tent covered by felt, typically used by nomadic peoples.