hevy magnesium ribbon is cleaned before burning

1.	hevy magnesium ribbon is cleaned before burning
Answer» for removing the layer of mgo because it restrict the buning of mg ribbon Magnesium ribbon is cleaned with sandpaper before burning to remove the deposited layer of basic magnesium carbonate (Magnesium carbonate hydroxide). Swtgtidg To remove the MgO which is formed by Mg ribbion when exposed to air .

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