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(also called or polypropylene) colourless transparent thermoplastic used where a flexible material is required.
large deposits formed from the excrement and bodies of seabirds. Often found on islands.
the process in radioactive decay where daughter nuclei continue to decay until non-radioactive...
the electrons in a bond between two atoms will be displaced towards the more electronegative...
single superphosphate fertiliser (SSP) is manufactured by adding sulfuric acid to phosphate...
a way of indicating the valencies in the names of the compound. Stock notation uses Roman...