Why magnesium should be cleaned before burning in air?
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Answer:
Magnesium ribbon must be cleaned before burning in air so that the layer of magnesium oxide (which is formed due to reaction of magnesium with air) can be removed in order to get the desired chemical reaction.
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Hello
Explanation:
It have a layer of magnesium oxide on it & we want only magnesium to be burnt so therefore we will remove oxide layer by cleaning it before hand..
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