Marble reacting with acid. When a few drops of 1M of hydrochloric acid are poured on a marble specimen, bubbles are produced. Marble contains calcium carbonate that reacts with hydrochloric acid to produce carbon dioxide bubbles: CaCO3 + HCl -> CaCl2 + H2O + CO2. This is the mechanism by which acid rain erodes marble statues and structures.

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TOP22299260

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達志影像

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RM

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