Question

why should magnesium ribbon be sand papered or cleaned before performing this experiment?
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Answer 1

Answer:

bcoz magnesium ribbon can contain moisture so that is why it is cleaned before performing the experiment

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Answer 2

With magnesium, the oxide layer forms a white coating on the outside of the metal that will slow down or interfere with the burning process. The ribbons should be sanded with a fine sandpaper, therefore, to remove the layer. ... Burning speeds up the conversion of magnesium to magnesium oxide in air.

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