The surface tension of liquids

We observe whether a razor blade can float on the surface of different liquids.

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Like dissolves like (observation)

Non-polar substances dissolve in non-polar solvents while polar substances dissolve in polar...

The effect of pressure change on chemical equilibrium

Examination of dissolved carbon dioxide in a bottle of carbonated water.

Žgoče srce

S pomočjo kisika, ki nastaja pri razpadu raztopine kalijevega nitrata, izžgemo srce iz papirja.

Naloge z molekulami VII. (Ogljikovi hidrati)

Naloga za razumevanje zgradbe in razvrščanja mono-, di- in polisaharidov.

Exothermic reaction

When heated, powdered sulphur reacts with powdered zinc, releasing heat.

Mixing substances, separating mixtures 2

Separating mixtures if one of the substances dissolves in water.

Mixing substances, separating mixtures 1 (observation)

The method of separation of substances in a mixture depends on their different properties.

Model vulkana

S pomočjo rdečega prehranskega barvila, sode bikarbone in kisa modeliramo vulkanski izbruh.

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