text: Eigen and de Maeyer proposed the products of this reaction migrate away along a "wire", faster than diffusion would predict.
full_question: Eigen and de Maeyer proposed the products of this reaction migrate away along a "wire", faster than diffusion would predict. This reaction explains why milli-Q has nonzero conductivity. This reaction forms hypervalent seven and thirteen-atom cations according to the Grotthuss mechanism. When the concentration of the reactant is 55.6 molar, the rate of this reaction is roughly one molecule per ten hours. The equilibrium constant for this reaction at 24 degrees Celsius is ten to the negative (*) fourteenth power, and is usually set equal to the product of K-sub-a and the conjugate K-sub-b. It forms hydronium and hydroxide. For 10 points, name this reaction in which two water molecules react to form positive and negative products.
first_sentence: Eigen and de Maeyer proposed the products of this reaction migrate away along a "wire", faster than diffusion would predict.
raw_answer: autoionization of water [or the dissociation of water; or the formation of hydronium and hydroxide from water; accept H2O instead of water, H3O+ instead of hydronium, and OH- instead of hydroxide; prompt on splitting water; prompt on similar equivalents]