その理由は次のとおりです。
* Carbonate rocks are made up of minerals like calcite and dolomite, which contain carbonate ions (CO3^2-).
* Acid (like hydrochloric acid, HCl) reacts with these carbonate ions to produce carbon dioxide gas (CO2), water (H2O), and a salt.
* This reaction is often visible as fizzing or bubbling as the carbon dioxide is released.
Examples of carbonate rocks:
* 石灰岩： Mostly composed of calcite.
* ドロマイト： Contains a mixture of calcite and dolomite.
* 大理石： A metamorphic rock formed from limestone.
重要な注意： While carbonate rocks are the most common type to react with acid, some other minerals can also react, but the reaction may be less obvious.
