Why should a Magnesium Ribbon be cleaned before burning in air? Is it due to Magnesium Oxide or Basic Magnesium Carbonate as different sources refer to both of these as correct.
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It should be cleaned before burning due to the following reasons:
Magnesium very reactive element which rapidly reacts with oxygen in the air to form a white layer of magnesium oxide and this layer will not burn.
To remove the Magnesium oxide layer from the ribbon which may prevent or slow down the burning of magnesium ribbon.
Unwanted impurities deposited on the magnesium ribbon can be removed and only pure magnesium can be used for the reaction.
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Answer:
it should be cleaned becoz layer of magnesium oxide is present on it.
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