Question

why should a magnesium ribbon be cleaned before burning in air​

Answer 1

Hi buddy

This is Mageniusm is high reactive metal so it will react with oxygen and forms magnesium oxide so it rubber with sandpaper

Hope it help you

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#sibi ❤️

Answer 2

Magnesium Ribbon is cleaned before burning in O2 to remove the MgO layer that forms on top of the ribbon over time.