Phosphorus trichloride (PCl₃)

Colourless liquid that gives off smoke in moist air.

Molecule exercise II (Polarity)

An exercise about the polarity of molecules.

Molecule exercises I (Bonds)

An exercise about different types of bonds.

Building shapes (one colour)

Build 3D shapes from unit cubes with the help of several views.

Grouping of solids 4

This animation demonstrates various groups of solids through examples.

Iodine crystal

A solid, grey substance which sublimates when heated. Its solution in alcohol is called...

Dimethyl ether (C₂H₆O)

A colourless gas with a typical odour, produced by dehydrating methanol.

Log house

Log houses were a typical type of dwellings in Hungary in the Árpád era.

Pauline monastery

The Pauline monastery was built for Hungarian hermit monks in 1225.

Earth fortification, Hungary

A triangular earth fortification, used by the leader of one of the old Hungarian tribes...

Methane hydrate

A solid substance formed at low temperatures on the ocean floors of Earth by the high...

1-butene (C₄H₈)

One of the isomers of butene.

Building shapes (multi colour)

Build 3D shapes from unit cubes with the help of several views.

Dichloromethane (CH₂Cl₂)

It is produced by treating methane with chlorine gas and used as a solvent.

2-methylpropane (isobutane, C₄H₁₀)

An isomer of butane, a colourless, flammable gas.

Trichloromethane, chloroform (CHCl₃)

Also known as chloroform, used as a solvent in laboratories, earlier as an anaesthetic.

Grouping of solids 1

This animation demonstrates various groups of solids through examples.

Glacier (basic)

A glacier is a large body of ice that forms from snow, and is in constant, slow motion.

Sulphur trioxide (SO₃)

One of the oxides of sulphur, forms sulphuric acid with water.

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