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Why should a magnesium ribbon be cleand before burning on air |
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Answer» So as ti remove a layer of magnesium carbonate. How mgo or mg2co3 is formed because magnesium do not react with oxygen at room temp. And if suppose mgo is formed then in our enironment only 0.003%of co2 is available and it is very difficult for mg to make mg2co3 . The magnesium ribbon should be cleaned to remove a protective layer named as magnesium carbonate Its actually to remove layer of mgo and mgco3 both. (Mgco3 forms in special case ). To remove the layer of magnesium oxide formed on its surface We should a magnesium ribbion be cleaned before burning in air to remove the layer of magnesium carbonate formed on it which hibders the burning of magnesium |
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