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a process whereby molecules combine automatically to form new ions as in the case of water.
the difference between the energy absorbed to break bonds and the energy transferred to the...
the distance between the centres (nuclei) of atoms joined in a bond.
(also called or polypropylene) colourless transparent thermoplastic used where a flexible...
the plastics converter industry uses polymers to manufacture useful everyday objects.
when a nucleus is unstable and emits particles and energy.