Electrolytic processes GapFill

Electrolysis is a method used to convert ions in  a polymera gasan aqueous solutiona solida mixturea compound into pure  metalselementsacidssaltshalideselectrons. Two rods, called electrodes, are inserted into the  waterfireelectrolytemixture powdergroundplasma, and the ions move to the electrode with the opposite  polaritypHchargepressurematerialtemperature. At the electrodes, the ions are  heatedcooleddeionisedpressurisedmagnetiseddischarged.

When a molten salt is electrolysed, the metal is produced at the  electronegred electrodepositive electrodecathodeelectronoxidite and the non-metal is produced at the  protonnegative electrodehydriteanodeelectroposblue electrode. 

Aqueous solutions can also be electrolysed, but OH⁻ and  C⁺O²⁻H⁺S⁺Na⁺K⁺ ions are also present due to the water. If the metal is  more solublemore concentratedmore conductivemore reactivewarmermore volatile than hydrogen, then  the metala metal carbonatehydrogenwatera metal oxideoxygen is produced at the negative electrode.  OxygenCarbon dioxideWaterMethaneHydroxideSodium is produced at the positive electrode, unless the non-metal is a halide, in which case  a halogenoalkanea halogenan alkoxidean alcoholan alkali metala halidon is produced.