How airbags work

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

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Hydrogen sulphide (H₂S)

A colourless, toxic gas with the characteristic odour of rotten eggs. It occurs in...

Silicon dioxide (SiO₂)

A polymorphic compound, mostly found in the form of quartz.

Nitrogen monoxide (Nitric oxide) (NO)

A colourless, heavier-than-air gas, an intermediate in the production of nitric acid.

Sulphur trioxide (SO₃)

One of the oxides of sulphur, forms sulphuric acid with water.

Oxygen (O₂) (intermediate)

A colourless, odourless gas, an important component of the atmosphere, indispensable...

Hydrogen bromide (HBr)

One of the hydrogen halides, it is used for the production of alkyl bromides.

Phosphate ion (PO₄³⁻)

A compound ion formed when a phosphoric acid molecule releases a proton.

Iodine crystal

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

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