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reactant

n.
1.a chemical substance that is present at the start of a chemical reaction

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    Idiom of the Day

    boil down to (something)
    to reduce something to its essential or main part
    The reason that we could not go on a holiday boiled down to the fact that we had no money.



    1.
    I could not convince them (a) / because they persisted to suggest (b) / that I was lying. (c) / No error (d)

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    My Account / Test History
    Invention
    Invention : thermostat
    Year : 1830
    Inventor : andrew ure
    Country : uk.      .. More >>
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