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Daily Practice

GCSE Science

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14th February 1990

5 questions · GCSE · 584 questions in this band

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  1. 1
    Chemical Changes

    Write the word equation for the reaction between zinc and hydrochloric acid.

  2. 2
    Reactivity, Acids and Salts

    Complete: acid + metal carbonate gives ...

  3. 3
    Electrolysis

    State the name given to the negative electrode in electrolysis.

  4. 4
    Energy Changes

    State whether the combustion of methane is exothermic or endothermic.

  5. 5
    Exothermic and Endothermic Reactions

    State what is meant by the activation energy of a reaction.

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