Skip to content
    Chemistry A-Level

    bonds broken minus bonds made

    What bonds broken minus bonds made means in Chemistry A-Level, as defined for AQA.

    Definition of bonds broken minus bonds made

    Check what you remember

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

    Reference: AQA

    The expression used to calculate an approximate ∆H, taking the total bonds broken minus the total bonds made.
    AQA · Bond enthalpies (study guide)

    Topics that use bonds broken minus bonds made

    Related terms

    Using bonds broken minus bonds made in the exam

    Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.

    Practise Chemistry questions

    Create a free account to answer exam-style questions on this topic and get feedback on your answers.

    Start free

    A week of Premium from your first lesson · Then the free plan continues · No card, no charge

    All Chemistry A-Level terms