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What is the structure and function of a nerve cell?

Nerve cells serve an important function in our bodies to relay information as electrical signals from the periphery to the central nervous system. Nerve cells are also called 'neurons' and can be as long ...

AH
Answered by Amelia H. Biology tutor
78273 Views

How do I improve my exam technique in a history exam?

Because your brain is overloaded with dates, facts and figures, it can be hard to know how to deploy them in the most concise way to answer the question on the paper. It is best to enter an exam with an e...

YI
Answered by Yasmin I. History tutor
3059 Views

Can you explain the difference between duerfen and muessen in the positive and negative?

In order to understand which of these two is most appropriate for what you are trying to say, you should think about their literal translations. Duerfen is "to be allowed to", expressing permiss...

EE
Answered by Eleanor E. German tutor
5416 Views

When and how do I use the passive voice in German?

The passive is used when the speaker/writer wants to put emphasis on the action and object of the sentence rather than the subject doing the action. For example in English the active sentence "He is ...

EE
Answered by Eleanor E. German tutor
2937 Views

Flask Q (volume = 1.00 x 103 cm3 ) is filled with ammonia (NH3) at 102 kPa and 300 K. The tap is closed and there is a vacuum in flask P. (Gas constant R = 8.31 J K−1 mol−1 ) Calculate the mass of ammonia

This question can be solved using the ideal gas equation, given by: PV=nRT 

Rearranging the ideal gas equation gives an expression for the number of moles as

n=PV/RT 

Subbing the valu...

SD
7175 Views

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