<prompt> The setting reaction of dental amalgam proceeds primarily by ___.Dissolution of the entire alloy particle into mercury.Dissolution of the Cu from the particles into mercury.Precipitation of Sn-Hg crystals.Mercury reaction with Ag on or in the alloy particle.  <response>: The trituration process mixes the amalgam components and the reaction results in the alloy particle being coated by mercury and a product being formed. 