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Explain why the 2nd Electron aiffinity of Chlorine is Endothermic whilst the first electron affinity is exothermic

With the first electron affinity, the chlorine atom is one electron from a full octet ( and is a neutral species). When you add an electron to the chlorine, the negatively charged electron is electrostatical...
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Answered by Hayden C. • Chemistry tutor
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Suggest why Phenol is more reactive than Benzene in Electrophillic Substitution

With phenol, the oxygen atom is directly attached to the delocolised pi system in phenol, as a result the lone pair on this oxygen is incorporated into this delocolised pi system in phenol, increasing it's e...
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Answered by Hayden C. • Chemistry tutor
2841 Views

Explain quantitatively how an object can follow circular motion whilst on a ramp with no friction in the radial direction.

The important condition for circular motion is that there must be a constant force acting perpendicular to the motion of the object. In this case there will be a contact force acting on the object from the r...
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Answered by James R. • Physics tutor
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Sine Rule

The sine rule is a very powerful tool used in mathematics to calculate unknown sides and angles of triangles when we only know some of the information. For example if we have a triangle and we know two angle...
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Answered by Hugo G. • Maths tutor
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Assess the view that the growth of fundamentalism is a reaction to globalisation.

Fundamentalists seem to go against the trend of secularisation, rejecting modern interpretations of faiths and seeking to return to the ‘literal truths’ of their religion. It is argued by some theorists that...
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Answered by Laura H. • Sociology tutor
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