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    Chemistry A-Level

    constant concentrations

    What constant concentrations means in Chemistry A-Level, as defined for AQA, OCR.

    Definitions of constant concentrations

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    Reference: OCR

    The concentrations of reactants and products do not change, even though particles are still reacting in both directions.
    OCR · Chemical equilibrium
    The concentrations of reactants and products remain constant, and constant does not mean equal.
    AQA · Chemical equilibria and Le Chatelier's principle (study guide)

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