07/06/2026
π€ Why do we clean a magnesium ribbon before burning it?
Because magnesium reacts with oxygen in the air and forms a thin layer of magnesium oxide on its surface.
This oxide layer prevents the ribbon from burning easily.
So before the experiment, we rub the ribbon with sandpaper to remove this coating and expose fresh magnesium underneath.
A tiny stepβ¦
But it makes all the difference! π₯π§ͺ
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