Fibroin is a fibrillar protein excreted by silkworms.
Ammonia is a colourless gas with a characteristic pungent smell. Its solution in water is called ammonium hydroxide or household ammonia.
An unsaturated monocarboxylic acid. The molecule contains double bond in cis orientation.
Potassium permanganate is used as a disinfectant.
Water is a very stable compound of hydrogen and oxygen, vital for all known forms of life. In nature it occurs in liquid, solid and gaseous state.
Buildings constructed of prefabricated concrete blocks were widespread in the former Socialist countries.
An organic compound in the urine of mammals, used in the production of fertilisers as a source of nitrogen.
The simplest diol.
A white, crystalline compound which breaks down when exposed to light.
Alpha-D-glucose is one of the stereoisomers of glucoses, specifically the D-glucoses.
Common salt (or table salt) is one of the most important sodium compounds, indispensable for living organisms.
A compound ion formed when a water molecule releases a proton.
Cellobiose is the basic structural unit of cellulose.
A light yellow compound formed in the reaction of silver nitrate and potassium iodide.
Colourless, toxic liquid with a sweet odour.
A colourless gas with a pungent odour, its solution in water is called hydrochloric acid.
A colourless, slightly viscous, hygroscopic liquid used in the production of formic acid, hydrogen cyanide and other organic compounds.
The simplest aldose, an optically active compound.
Leonardo's creative legacy also includes several projects related to bridges. This unusual swing bridge allowed for undisturbed water traffic.
A heterocyclic organic compound.