Question

Why should a magnesium ribbon be cleaned before burning in alr?​

Answer 1

Answer:

magnesium ribbon is cleaned before burning in air so as to remove magnesium oxide

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Answer 2

Answer:

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Explanation:

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Magnesium ribbon should be cleaned with sandpaper before burning in the air. ... Magnesium very reactive element which rapidly reacts with oxygen in the air to form a white layer of magnesium oxide and this layer will not burn.