Electrochemistry: (electrical current)(causes)(chemical reaction)
Electrolytic cell: (apparatus)( (electrical current)(causes)(chemical reaction))
Galvanic cell: (apparatus)((chemical reaction)(causes)( electrical current))
Electroplating: (electrical current)(adds)(thin)(layer)(metal) onto an electrically conductive surface.
Catalyst: (substance)(encourages)(chemical reaction)
Catalysts work by increasing the frequency of collisions between reactants, altering the orientation of reactants so that more collisions are effective, reducing intramolecular bonding within reactant molecules, or donating electron density to the reactants. These more precise causal processes can also be rendered through linked terms.
Substrate: (substance)(affected by)(catalyst)
Toxin: (substance)(causes)(disease)
See Classifying Chemical Reactions
Note: We will in time determine the best notation for the general term "substance"