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a crystal lattice of positive kernels in a sea of delocalised electrons to which they are attracted.
reactions that either simultaneously occur in both directions or that can be reversed by...
reactions in which an atom or group of atoms is replaced in a molecule by another atom or group...
a method used to refine petrol by breaking covalent bonds between carbon atoms using heat and a...
completes the circuit between the two half-cells in an electrochemical cell.
the symbols used to represent an element or compound e.g. H2O for water