When carbon dioxide dissolves in rainwater, it forms carbonic acid, which is a weak acid. Therefore, the solution becomes acidic, not alkaline. Here are the steps:

1. Carbon dioxide (CO2) from the atmosphere dissolves in rainwater (H2O).
2. This forms carbonic acid (H3O2), through the reaction: CO2 + H2O - H2CO3.
3. Carbonic acid can donate a hydrogen ion (H+) to other molecules, which is a characteristic of acids.
4. Therefore, the presence of carbonic acid lowers the pH of the rainwater, making it acidic.

Question

When carbon dioxide dissolves in rainwater, it forms carbonic acid, which is a weak acid. Therefore, the solution becomes acidic, not alkaline. Here are the steps:

1. Carbon dioxide (CO2) from the atmosphere dissolves in rainwater (H2O).
2. This forms carbonic acid (H3O2), through the reaction: CO2 + H2O -> H2CO3.
3. Carbonic acid can donate a hydrogen ion (H+) to other molecules, which is a characteristic of acids.
4. Therefore, the presence of carbonic acid lowers the pH of the rainwater, making it acidic.

Knowee AI · Accepted Answer

When carbon dioxide dissolves in rainwater, it forms carbonic acid, which is a weak acid. Therefore, the solution becomes acidic, not alkaline. Here are the steps:

1. Carbon dioxide (CO2) from the atmosphere dissolves in rainwater (H2O).
2. This forms carbonic acid (H3O2), through the reaction: CO2 + H2O -> H2CO3.
3. Carbonic acid can donate a hydrogen ion (H+) to other molecules, which is a characteristic of acids.
4. Therefore, the presence of carbonic acid lowers the pH of the rainwater, making it acidic.

Does the carbon dioxide dissolved in rainwater make an acidic or alkaline solution?

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