non-electrolyte. Compound because they are not electrically conductive, but is a Nike tn pas cher simple substance, does not meet the definition of the electrolyte, for example, barium sulfate, although insoluble material, but the composition was dissolved in the water is fully ionized, barium sulfate is a strong electrolyte. Most salts few salt formed, a small degree of ionization, belongs. Example, mercuric chloride, cadmium iodide, and is composed of Hg and Cd easily anion polarization, and Cl, the I, etc. are easily polarized anion, since the inter-polarization effects in the cation and anion , cloud generates a large deformation, causing a change in the nature of the bond, as high as their melting points and boiling points better ionic crystals. HgCl2 CdI2 m.p. / ° C 276 388 Boiling Point / ° C 302 713 experiments show, an aqueous solution of HgCl2 almost non-conductive, its ionization degree is not more than 0.5%, even in a very dilute solution. This shows that the HgCl2 in solution mainly in molecular form, only a small amount of HgCl, Hg and Cl ion. Salts of transition metals in aqueous solutions is requin pas cher often similar to the above case. Electrolyte did not dissolve in water or non-molten state is usually not electrically conductive. (For example: of NaCl solid does not conduct electricity, only of living in harmony with the state or an aqueous solution can dissolve in water conductive) [1] electrolysis electrical energy into chemical energy, namely DC - solution interface through the electrolyzer, performed on electrically procedure. For example, the electrolysis of water electrolyzer cathode is iron, the anode is a nickel plate, is a sodium hydroxide solution. Is energized, under the action of external electric field, the positive and negative ions in the electrolyte, respectively, to overcast, anode migrate the ions in the electrochemical reaction on the electrode - solution interface.