Question

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Which statement describes the neutralIzing effect of limestone bedrock when exposed fo acid rain? a. carbonic acid dissolves calcium carbonate within limestone, forming salts
b. carbonic acid reacts with calcium carbonate to reform carbon dioxide gas d. carbonic acid increases the pH of ocena waters and neutralizes calcium carbonate
c. carbonic acid reacts with calcium carbonate to reform carbon dioxide gas
d. carbonic acid increases the pH of ocean waters and neutralizes calcium carbonate

Answer 1

b. carbonic acid reacts with calcium carbonate to reform carbon dioxide gas.

Step-by-step explanation:

When limestone bedrock is exposed to acid rain, the carbonic acid present in the rainwater reacts with the calcium carbonate (CaCO3) in the limestone. This reaction produces carbon dioxide gas (CO2), water, and dissolved calcium ions. The carbon dioxide gas is released into the atmosphere, while the water and dissolved calcium ions may be carried away by runoff.

This reaction represents the neutralizing effect of limestone bedrock. The carbonic acid, which is acidic, reacts with the calcium carbonate, which is alkaline, resulting in the formation of carbon dioxide gas. This reaction helps to neutralize the acidity of the rainwater and mitigate its harmful effects on the environment.