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    Chemistry GCSE

    Closed System

    What Closed System means in Chemistry GCSE, as defined for OCR.

    Definition of Closed System

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    Read the wording for your board, then hide it and explain Closed System in your own words. Rough notes are fine. This is a self-check, with no mark or grade.

    Reference: OCR

    A system in which no substances can enter or leave during a reaction.
    OCR · Topic C5: Monitoring and controlling chemical reactions (study guide)

    Topics that use Closed System

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    Using Closed System in the exam

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