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a molecule containing anything from thousands to hundreds of millions of atoms per molecule, a polymer, e.g. biological like proteins, nucleic acids or polysaccharides, or chemical like polythene
a group of elements that are poor conductors of heat and electricity.
compounds of aluminium oxide and silicon oxide that form an open lattice structure. They are...
reactions in which an atom or group of atoms is replaced in a molecule by another atom or group...
adhesive (sticky) and elastic, tending to gather together in drops rather than spread over a...