why crystal of washing soda changes to White powder on exposure to air?
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When sodium carbonate crystals are exposed to air They lose water of crystallization and turn to white powder. ... 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.
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Answer:
Chemical formula of washing soda is Na2CO3. 10 H2O
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'.
Na2CO3 .10H2O → Na2CO3 + 10 H2O
Hope it helps!☺
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