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    Chemistry GCSE

    Hardness and melting point

    What Hardness and melting point means in Chemistry GCSE, as defined for AQA.

    Definition of Hardness and melting point

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    Reference: AQA

    The rigid network makes diamond very hard, and many strong covalent bonds must be broken to melt it, so it has a very high melting point.
    AQA · Diamond (study guide)

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