Explain the formation of a white powder on the surface of washing soda crystals which are left exposed to the air for some time.
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Explanation:
When sodium carbonate crystals are exposed to air They lose water of crystallization and turn to white powder. This process of loosing water of crystallization when exposed to air is called efflorescence. When sodium carbonate crystals are exposed to air They lose water of crystallization and turn to white powder.
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washing soda is efflorescent substance which when expose to air loses its chemical composition (means -water of crystallisation) partly become powder which form white powder on crystal
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