Asked by Suleiman

what is the R.F of 2.5cm to 4cm?
Answered by Ms. Sue
This is the strangest geography question I've ever seen.
Answered by Reed
It's one of the strangest questions I have ever seen, period!
Answered by Anonymous
Rf calculations? Is this thin layer chromatography? if so, you simply divide the two. 2.5/4 =
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