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Although A-level English can seem a lot harder, it really does build off of what you already know and can already do, so don't panic! Whereas in GCSE examiners are looking for your perceptive thoughts bas...

This is simpler than you think when you break it down. Just multiply both the numerators (the top number of your fraction) together for the new numerator of the fraction in your answer. Then do the same f...

Generally, examiners are looking to see how perceptive you are and how well you understand the text in accordance with the question you are given. Something I personally found useful was using a structure...

First you must calculate the moles of Mg that originally reacted. moles = mass/Mr moles=48/24 moles= 2 Molar ratio of Mg to MgCl2 is 1:1 Therefore 2 moles of MgCl2 were produced moles= mass/Mr mass= moles...

Practically, the cell is unable to translate proteins from DNA as the translation machinery is in the cytoplasm and the DNA is in the nucleus and so the messenger RNA (mRNA) communicates the genetic code ...