Water  is  in  a state of dynamic equilibrium in which H[2]O molecules
   dissociate  into  H[3]O^+ (hydronium) and OH^- (hydroxide) ions at the
   same rate at which they are being reformed.
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   For  simplicity,  H[3]O^+  can be viewed as H[2]O plus a H^+ (hydrogen
   ion), or proton.
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   Review:  <A ClAsS=ACT Href="http://media.pearsoncmg.com/bc/bc_campbell_biology_7/media/activities/load.html?3&amp;C" oNClick="popact('http://media.pearsoncmg.com/bc/bc_campbell_biology_7/media/activities/load.html?3&amp;C');txtcolor('dissociate1','gray');return false;" Id=dissociate1><iMg sRc="/images/tutorial.gif" aLt='' boRDer=0></A>