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Reactions of Acids with Carbonates and Hydrogen Carbonates

Edexcel AS-level ChemistryTypes of ReactionLesson 8 of 8

Carbonates contain the CO32- ion.

acid + carbonate → salt + water + carbon dioxide.

CaCO3(s) + 2HCl(aq) → CaCl2(aq) + H2O(l) + CO2(g)

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Key terms in this lesson

neutralisation reaction
A reaction between an acid and a base in which hydrogen ions are removed to form water.
redox reaction
A reaction in which oxidation and reduction happen together, with electrons transferred between the species involved.

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