Question

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

Answer 1

magnesium ribbon be cleaned before burning in air because magnesium is considered as one of the most active element of the metal which reacts with the atmospheric gases like Oxygen and Carbon dioxide and forms its carbonate or oxide players helps to remove these letters and to prevent the rate of burning generally the magnesium ribbon be cleaned before burning in air

Answer 2

QUESTION:-

Why should a magnesium ribbon be before burning in air ?

Answer =>

Magnesium ribbon is more reactive and when it is exposed to air, a layer of MgO is formed on its surface.

ribbon is more reactive and when it is exposed to air, a layer of MgO is formed on its surface.2MgO(s) + O2(g)→2MgO(s)

This layer of MgO is removed by rubbing with sand paper before burning in air. Therefore magnesium ribbon easily reacts with oxygen. Thus, magnesium ribbon is cleaned before burning in air.