Answer :
Final answer:
When carbonic acid in water reacts with limestone, it dissolves the limestone due to its acidic nature.
Explanation:
When carbonic acid in water reacts with limestone, it dissolves the limestone. This reaction occurs due to the acidic nature of carbonic acid, which allows it to react with the calcium carbonate present in limestone. The reaction results in the formation of calcium bicarbonate.
The chemical equation for this reaction can be represented as:
H2CO3 + CaCO3 → Ca(HCO3)2
The dissolution of limestone in carbonic acid is a slow process, but it can lead to the erosion of limestone over time.
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