Question

why should mg ribbon cleaned before burning in air? ​

Answer 1

Magnesium ribbon must be cleaned before burning because magnesium when exposed to air is reacts with oxygen and forms a thin layer of magnesium oxide on the ribbon,which may bring out changes in the reaction,so to remove the layer of magnesium oxide layer the ribbon is cleaned

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Answer 2

ANSWER:

the mg ribbon must be cleaned before burning in air so that the layer of mg oxide can be removed in order to get desired chemical reactions

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