Magnesium ribbon is rubbed before burning because it has a coating of
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Answer:
Magnesium ribbon is rubbed before burning because it has a coating of magnesium carbonate on it.
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Answer:
Magnesium Oxide
Explanation:
Due to exposure of outer layer of magnesium has reaction to the oxygen in the atmosphere and turned into magnesium oxide. Magnesium oxide won't burn that's why we have to rub the magnesium oxide off .
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