chemisorption

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Attachment, by chemical means, of a single layer of molecules, atoms, or ions of gas to the surface of a solid or, less frequently, a liquid. It is the basis of some types of catalysis (see catalyst) and is of great industrial importance.

The sun of freedom rises from the Caribbean Sea. The stars represent Costa Rica's seven provinces. Red was added to the blue and white flag to reflect the French tricolour. Effective date: 29 September 1848. >>