why should a magnesium ribbon be cleaned before burning in air?
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Namaste
Magnesium ribbon must be cleaned before burning in air so that the the layer of magnesium oxide (which is formed due to reaction of magnesium with air) can be removed in order to get the desired chemical reaction.
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HEYA MATE !!
Magnesium ribbon should be cleaned
with sand paper before burning in air ..
As magnesium is very reactive metal , when keep in air it reacts with oxygen and form white layer of magnesium oxide and so through this layer it can't burn...thus, in order to remove this layer magnesium should be cleaned ...
HOPE IT WILL HELP YOU...
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