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Hydrogen chloride (HCl)

A colourless gas with a pungent odour, its solution in water is called hydrochloric acid.

Genome editing

Genome editing is a type of genetic engineering which results in changes in the genome of an organism. This animation presents one of the best-known genome...

Hydrogen (H₂)

Colourless, odourless, lighter-than-air gas. The most common chemical element in the universe.

Pentane (C₅H₁₂)

The fifth member in the alkane homologous series. A colourless, combustible liquid.

Ichthyosaur

Fish-like marine dinosaurs which resembled dolphins; a good example of convergent evolution.

Maltose (malt sugar) (C₁₂H₂₂O₁₁)

A disaccharide formed by the joining of two alpha-D-glucose molecules.

Hydrogen bromide (HBr)

One of the hydrogen halides, it is used for the production of alkyl bromides.

Leonardo da Vinci’s inventions -– Siege engines

Leonardo was not only a master artist, but also an accomplished military engineer.

Aniline (C₆H₅NH₂)

The simplest aromatic amine. Its scientific name is phenylamine.

Phosphoric acid (H₃PO₄)

It is also used as a food additive, limescale and rust remover.

Hydronium ion (H₃O⁺)

The presence of hydronium ions relative to hydroxide ions determines a solution´s pH.

Leonardo da Vinci’s inventions – Swing bridge (1487–1489)

Leonardo's creative legacy also includes several projects related to bridges. This unusual swing bridge allowed for undisturbed water traffic.

Trans-2-butene (C₄H₈)

A colourless, heavier-than-air gas. Its geometric isomer is cis-2-butene.

Nitrate ion (NO₃⁻)

A compound ion, the main source of nitrogen for plants.

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