Question

Why sould a magnesium ribbion be cleaned before burning in air ?

Answer 1

Answer:

Explanation:

The magnesium ribbon should be cleaned before burning in the air because the layer of magnesium oxide (which is formed due to the reaction of magnesium with air ) can be removed in order to get the desired chemical reaction.  

Also in order to remove the oxide layer, the presence of which slowdowns the oxidation process. So, by cleaning it, the burning process takes place easily.

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Answer 2

when the ribbon us exposed to air there might be a formation of oxygen layer on the magnesium ribbon. to prevent this the ribbon should be cleaned before burning in air .

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