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Daily Practice

GCSE Science

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30th January 1993

5 questions · GCSE · 584 questions in this band

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  1. 1
    The Periodic Table: Groups and Trends

    Why did Mendeleev leave gaps in his table?

  2. 2
    Bonding, Structure and Properties of Matter

    State one reason why simple covalent substances such as chlorine have low melting points.

  3. 3
    Chemical Bonding: Ionic, Covalent and Metallic

    Describe metallic bonding.

  4. 4
    Structures, Properties and Nanoparticles

    State the size range of a nanoparticle.

  5. 5
    Quantitative Chemistry

    A student measures the mass of a beaker of hydrochloric acid and marble chips as they react and finds it falls. Explain why.

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