why magnesium ribbon is cleaned before burningwhy magnesium ribbon is cleaned before burning
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Magnesium ribbon is cleaned before burning to remove a coating of magnesium oxide on the ribbon which is formed due to reaction of magnesium with oxygen in air.
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magnesium ribbon reacts with carbon dioxide present in the air to form a protective and inert layer of magnesium carbonate. This layer is unreactive and hence, needs to be cleaned with sand paper before burning in air.
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