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Aminoethane can be prepared by a reduction reaction. Identify a starting compound that can be used to prepare aminoethane by reduction, give the necessary reagent and write an equation for the reaction.

Amines can be prepared by reduction of Amides or Nitriles. To give Aminoethane (CH 3 CH 2 NH 2 ) we need an Amine or Nitrile with the same number of carbon atoms (2 in this case). This would be Acetamide (CH...
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Answered by Thomas N. • Chemistry tutor
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How can I analyse a quote?

Analysing a quote can be done in a number of ways and is often a key part of essay writing. My school taught me to use the PEEL approach but there are many other variants of this which you may have learnt in...
SA
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Find the tangent to y = x^2 - 4x + 9 at the point (3,15)

First find dy/dx: dy/dx = 4x - 4 And thus at (3,15): dy/dx = 12 - 4 = 8 = m (as m is the gradient of a curve) So using y - y 1 = m(x - x 1 ) where (x 1 ,y 1 ) = (3,15): y - 15 = 8(x - 3) y = 8x- 9
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Answered by Scott H. • Maths tutor
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What would happen to n and Emax when  a) the intensity is reduced to 1/2 I but the wavelength λ is unchanged? b) the wavelength λ is reduced but the intensity is unchanged?

FULL QUESTION: Electromagnetic radiation of wavelength λ and intensity I, incident on a metal surface, causes n electrons to be emitted per unit time. The maximum kinetic energy of the electrons is Emax. Wha...
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Answered by Kim E. • Physics tutor
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Why might a private limited company want to expand to become a public limited company? What are the advantages and drawbacks to doing so?

There are various reasons why a private company might want to become a public limited company, but the most common reason is to raise money in the public market by issuing shares. Investors who are eligible ...
MC
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