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प्रश्न
What happens when an acid reacts with a metal carbonate? Explain with the help of an example. Write chemical equation of the reaction involved.
रासायनिक समीकरण/संरचनाएँ
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उत्तर
Reaction of hydrochloric acid (HCl) with calcium carbonate (CaCO₃):
\[\ce{CaCO3 + 2HCl -> CaCl2 + CO2 + H2O}\]
Calcium chloride (CaCl₂) = salt
Carbon dioxide (CO₂) = gas released (seen as effervescence/bubbles)
Water (H₂O)
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