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Chromatography can be used to determine the RF value of an unknown substance. This RF value when cross-referenced with already known RF values can then be used as a guide to find out a potential range of ...

2x + 5 lnx

It can be hard for native English speakers to fully grasp the subjunctive mood, because it’s so archaic in English. Firstly, it’s a mood and not a tense. It emphasises that somewhere in your sentence ther...

We know there are 6525 more women than men. We can deduce that 5 'parts' = 6525 as 11-6=5If 5 parts = 6525. 1 part = 6525/5 = 1305.We know that 4 parts are children so, 1305 * 4 = 5220Alternatively, once ...

Give three possible explanations always including the one in the question e.g. power of the state; social and economic divisions; and problems with Chartism itself.Introduce all three factors and your arg...