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What main products are formed when an acid reacts with a metal carbonate?

Answer and explanation

Correct answer: Salt, water and carbon dioxide

An acid reacting with a metal carbonate follows the general pattern: acid + metal carbonate → salt + water + carbon dioxide. For example, hydrochloric acid reacts with calcium carbonate as 2HCl + CaCO₃ → CaCl₂ + H₂O + CO₂. The released carbon dioxide turns limewater milky. Hydrogen is not the characteristic gas in this reaction, so option A is correct.

Related tags

ScienceClass10Acid-Carbonate-ReactionCarbon-DioxideSaltsAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And Behaviour

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