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21 April, 12:57

Many stone buildings are made from limestone, which is primarily Valium carbonate. What happens to such buildings over time if they are exposed to acid rain?

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  1. 21 April, 13:15
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    They gradually dissolve.

    Step-by-step explanation:

    The acids in acid rain react with the calcium carbonate.

    For example,

    CaCO₃ + 2HNO₃ ⟶ Ca (NO₃) ₂ + H₂O + CO₂

    The soluble calcium salts wash away.

    The surfaces of the buildings become eroded and carved details gradually disappear.
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