Boiling water with ice

Is it possible to boil water below its boiling point of 100°C?

Байланысты экстралар

The silver mirror test

If we add formaldehyde to the Tollen’s reagent and heat it, the...

Dyeing a flower

We spray a transparent liquid on the petals of a flower and watch...

Decolourising a rose with chlorine gas

In this experiment we decolourise our rose with some chlorine gas.

Alcohol oxidation

Examining the colour of a piece of copper when exposed to heat and...

Catalytic cracking

The oil industry is able to meet the world’s growing need for fuel...

The production of ethylene and its reaction with bromine water

Ethylene, produced by the heating of polyethylene, changes the...

Do walnuts burn? (observation)

The energy released by the burning walnut is used to heat water.

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