what happens when HNO3 is added to an egg shell?
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When HNO3 is added to an egg shell then a foul smell is obtained that is NO2
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Egg shell is made of calcium carbonate. We know that when calcium carbonate reacts with nitric acid, it gives carbon dioxide, calcium nitrate and water. Same reaction happens when nitric acid is poured over egg shell.
CaCO3 + 2HNO3 ⇨ Ca(NO3 )2 + CO2 + H2O
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