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You should start thinking about essay structure when planning your answer. Break the essay down into intro, 3 or 4 paragraphs and a conclusion. The purpose of the into is to 'unpick' the question - discus...

First, make sure everything is in the correct units: H = 155 kJ mol-1 = 155000 J mol-1 S = 131 J mol-1 T = 25 C = 298K Then use the Gibbs equation to calculate the free energy: G = H - TS G = 155000-298*1...

By inhibiting the enzyme acetylcholinesterase, the neurotransmitter acetylcholine does not get broken down. This causes acetylcholine to build up in the synapse between the motor neurones and muscles of r...

DEFINE: Key words What is a junction, what is a neurone and what is the nervous system? So, the nervous system connects all the nerve cells and fibres which transmit nerve impulses from one part of the bo...

This question is highly debated by scholarship, but it's important in understanding what framework Augustus built for the Empire. Contemporary sources don't imply that Augustus was defensive at all; Prope...