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Electrolysis is often used to give metal objects a decorative coating. This is known as electroplating.

 1.55 Using electrolysis Electrolysis happens when an electric current is passed through an ionic compound which has been melted or dissolved.  Electrolysis has a wide range of uses including : electroplating, extraction of aluminium, production of chlorine and the purification of copper . This post helps you to unders...

 2.23 Activity 3. Aluminium extraction Electrolysis is used to extract reactive metals from their ores. Aluminium is a good example of this. Work through the animation carefully and then answer the questions below: QuestionsAnswers ​1. What ions are present in the compound aluminium oxide? 2. What is the aluminium oxide mixed wi...

More than 75% of the elements in the periodic table are metals. Metals are extremely useful materials with a wide variety of uses. This is due to the fact that they have a range of useful physical properties. all metals are : good conductors of heat and electricity most metals are: shiny when freshly cuthigh melting point solidsducti...