Chromatography and fractional distillation can be used to separate compounds. In which type of separation is a thermometer needed for

Question

Chromatography and fractional distillation can be used to separate compounds.
In which type of separation is a thermometer needed for checking that complete separation has
occurred?
A chromatographic separation of two colourless solids
B chromatographic separation of two solids of different colours
C fractional distillation of two colourless liquids
D fractional distillation of two liquids of different colours

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Thành Công 4 years 2021-07-19T11:52:00+00:00 1 Answers 57 views 0

Answers ( )

  1. thienthanh
    0
    2021-07-19T11:53:46+00:00
    Reply

    Answer:

    fractionao distillation of two colourless liquids

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )