Cis-2-butene (C₄H₈)

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

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Alcohol oxidation

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

Dyeing a flower

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

Production of hydrogen gas

Let’s make hydrogen gas using zinc powder and hydrochloric acid...

Do walnuts burn? (observation)

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

Rapid and slow combustion

This video is about the characteristics of and differences between...

Decolourising a rose with chlorine gas

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

Chemists in the Arctic

We are in the northern reaches of Norway. This place will be home...

The silver mirror test

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

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