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Why does reacting a bromoalkane with ammonia result in a quaternary ammonium salt and not an amine?

To explain this question let us use an example of reacting Bromoethane (CH3CH2Br) with ammonia (NH3). As bromine is more electronegative than carbon (electronegativity being the ability of an element to attr...
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Answered by Henry D. • Chemistry tutor
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Explain Descartes' argument for the indivisibility of the mind. [5 marks]

Descartes defines the mind as something which only thinks and is not 'extended', and the body as something which is only extended but does not think. He claims that these two ideas are clearly and distinctly...
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Answered by Anna G. • Philosophy tutor
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How persuasive do you find Cicero’s comments that Pompey should gain the command? [10 marks]

Extensive knowledge of military affairs: his training began from a very young age. From school age he was part of his father’s army, then lead the greatest army as commander himself from the earliest boyhood...
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Answered by Anna G. • Latin tutor
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What is natural frequency and how is it associated with resonance?

When anything is hit it will vibrate at the same frequency regardless of the force that hits it. This frequency of un-damped oscillations is the natural frequency. And every object/system has its own set of ...
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Answered by Henry M. • Physics tutor
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Solve 9x-4=7(x+2)

BIDMAS is used to determine the first step in solving this problem. The bracket on the right hand side is expanded first. 9x-4=7x+14. Now the x's and numbers must be moved to opposite sides of the equals sig...
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Answered by Jayani T. • Maths tutor
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