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Daily Practice · GCSE Science

Daily Practice - GCSE Science

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27th February 1998

5 questions · GCSE · 584 questions in this band

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  1. 1
    Quantitative Chemistry

    State the law of conservation of mass.

  2. 2
    Moles, Formulae and Equations

    How many atoms are there in 0.5 mol of helium?

  3. 3
    Concentration, Yield and Atom Economy

    Convert 250 cubic centimetres into cubic decimetres.

  4. 4
    Chemical Changes

    State the pH value of a neutral solution.

  5. 5
    Reactivity, Acids and Salts

    Explain the difference between a strong acid and a concentrated acid.

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