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    Chemistry A-Level

    Charges on common ions and polyatomic ions

    What Charges on common ions and polyatomic ions means in Chemistry A-Level, as defined for OCR.

    Definition of Charges on common ions and polyatomic ions

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    Reference: OCR

    The correct charge is applied to each ion, including group numbers and common polyatomic ions, before combining them.
    OCR · Compounds, formulae and equations

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