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Metals constitute about 75%-80% of the k...

Metals constitute about 75%-80% of the known elements. True/False

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Knowledge Check

  • 75% of a first order reaction was completed in 32 minutes. When was 50% of the reaction completed ?

    A
    24 minutes
    B
    16 minutes
    C
    8 minutes
    D
    4 minutes

  • 75% of a first order reaction was completed in 32 minutes. When was 50% of the reaction completed ?

    A
    24 minutes
    B
    16 minutes
    C
    8 minutes
    D
    4 minutes

  • 75% of a first order reaction was completed in 32 minutes. When was 50% of the reaction completed ?

    A
    24 minutes
    B
    16 minutes
    C
    8 minutes
    D
    4 minutes

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