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double replacement reaction

n.
1.a chemical reaction between two compounds where the positive ion of one compound is exchanged with the positive ion of another compound

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    Idiom of the Day

    horse sense
    good judgement, wisdom in making decisions
    Our boss has good horse sense so you can expect him to make an intelligent decision.



    1.
    I advised my son (a) / to engage two coolies instead of one (b) / because the luggage was too much heavy for a single coolie. (c) / No error (d)

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