Question

Why should a magnesium ribbon be cleaned before burning in air?​

Answer 1

Explanation:

The magnesium ribbon should be cleaned before burning in the air because the layer of magnesium oxide (which is formed due to the reaction of magnesium with air ) can be removed in order to get the desired chemical reaction. Also in order to remove the oxide layer, the presence of which slowdowns the oxidation process.

Answer 2

Answer:

it is because to remove any layer of carbonate or oxygen present there before

Explanation:

and also remove any type of waste or partical that can interfare in the reaction