Chemistry

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Higher chemistry paper 1 revision

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  • 1. Multiple-choice
    30 seconds
    1 pt
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    What is the electronic configuration for this atom?

    2.7.2

    2.8.1

    2.8.2

    2.8.3

  • 2. Multiple-choice
    30 seconds
    1 pt

    What are the advantages of phytoextraction? (more than one answer)

    No harmful gases are produced

    causes less damage to the landscape than mining

    very slow

    can extract metals from contaminated soils

  • 3. Multiple-choice
    30 seconds
    1 pt

    During electrolysis of molten sodium chloride what products would you expect at the anode and cathode?

    Sodium metal and chlorine gas

    Hydrogen gas and chlorine gas

    Sodium metal and hydrogen gas

    Hydrogen gas and oxygen gas

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