Note that your final mark will not be saved in the system.
Electrolytic processes Typeit
Type the correct answers into the spaces. Fill all the spaces before clicking ‘Check Answers!’
In electrolysis, an ionic compound is melted or dissolved in water to allow ions to move freely in the . An electric current is supplied, which causes to move to the cathode and to move to the anode to be discharged and form pure . For example, when lead is discharged at the negative electrode, the half-equation is Pb2+ + e- → Pb. The electrodes used for molten ionic compounds must be so that they do not react with the electrolyte or any products.
When electrolysis occurs in aqueous solutions, the ions that are discharged are determined by the relative of their elements. Water molecules are ionised in solution to form hydrogen ions and ions, which adds to the selection of ions present in solution. If a very reactive metal is used, the less reactive will be reduced at the cathode. Oxygen is usually produced at the anode, except when ions are present, in which case a halogen is produced via an reaction.