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Chemistry  /  Chem 1827  ·  Atom · ~20 seconds

Strong Acids and Bases: Complete Dissociation

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A strong acid or base is one that reacts essentially completely with water, so its equilibrium lies so far toward products that the reaction is treated as one-directional.

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Dissolving HCl in water leaves essentially no molecular HCl remaining, only H3O+ and Cl−.

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"Strong" describes the extent of this reaction, not the solution's concentration — Chem 0406 registers that twin in full.