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Strong and Weak Acids

OCR AS-level ChemistryAcids and RedoxLesson 2 of 6

A strong acid completely dissociates in aqueous solution and releases all its hydrogen ions into solution as protons.

A weak acid partially dissociates in aqueous and releases only a small proportion of its hydrogen ions.

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Key terms in this lesson

Ion
A positively or negatively charged atom or group of atoms, formed by the loss or gain of electrons.
Acid
A proton donor; a substance that releases hydrogen ions when dissolved in water.

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