How airbags work

A compound called sodium azide is responsible for the operation of airbags.

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Elephant toothpaste

We prepare a special “elephant toothpaste” with some hydrogen peroxide, liquid soap and food...

Red phosphorus

One of the allotropes of phosphorus.

Iodine crystal

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

Bromine (Br₂)

One of the halogens, it may cause skin irritation.

The process of glass production

Glass items are an integral part of everyday life. But how are they made?

Sulphur dioxide (SO₂)

Sulphur dioxide emission is the main cause of acid rains. It is an intermediate product in the...

Phosphoric acid (H₃PO₄)

It is also used as a food additive, limescale and rust remover.

Silicon

A crystalline substance, an extremely important material in the electronics industry ...

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