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How can I quickly revise knowledge while also working on exam technique?

Mind maps are a really great way to revise knowledge. Start with an exam question, identify the key theme(s) present in that question and place these themes in the bubble at the centre of your mind map. Set ...
EU
Answered by Emily U. • History tutor
2395 Views

Explain how a synapse between two neurons functions

When impulse arrives at pre-synaptic terminal, the depolarisation opens the voltage-gated Ca2+ ion channels. This causes Ca2+ to enter synapse due to differences in concentration. This causes the vesicles to...
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Answered by George B. • Biology tutor
3082 Views

What is the subjunctive and how do I form it?

The Spanish subjunctive is a "MOOD" which means it reflects the attitude or the feelings of the person who is speaking. You can have a subjunctive mood in different verb tenses (subjunctive present...
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Answered by Emma T. • Spanish tutor
2803 Views

Why do I sometimes say 'ich fahre in der Stadt' and other times 'ich fahre in die Stadt'? What is the difference and why is there one?

Here, the difference is not between gender: 'Stadt' is always a feminine noun. Here, 'in der Stadt' is in the dative case, governed by the preposition 'in', whilst 'in die Stadt' is in the accusative. 'In' i...
MM
Answered by Melissa M. • German tutor
16816 Views

Describe a test that could be used to distinguish between potassium sulfate (K2SO4) and potassium nitrate (KNO3)

Add a solution containing Barium ions (eg BaCl2, Ba(OH)2, etc)K2SO4 will form white precipitate KNO3 will have no visible change
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Answered by Isobel W. • Chemistry tutor
15838 Views