The production of ethylene and its reaction with bromine water

Ethylene, produced by the heating of polyethylene, changes the colour of bromine water.

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Cyclopentane (C₅H₁₀)

Member of the cycloalkane homologous series.

Lactose (C₁₂H₂₂O₁₁)

A type of sugar found in mammalian milk.

Propane (C₃H₈)

The third member in the homologous series of straight-chain alkanes.

Valine

One of the 20 amino acids that make up proteins.

The hot ice experiment

The words hot and ice together? There must be a trick somewhere. Let’s have a look.

2-methylbutane (C₅H₁₂)

One of the isomers of pentane, used as a solvent.

Dehydration of sugar with sulphuric acid

In this experiment we make beet sugar, that is saccharose, react with sulphuric acid.

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