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Explain the delocalised model of benzene, and hence why it is less reactive with electrophiles than cyclohexene

Benzene consists of a ring of 6 carbon atoms bonded to each other by sigma bonds from the overlap of s orbitals.p orbitals above and below the ring overlap to form a delocalised pi system with rings of el...

AW
Answered by Archie W. Chemistry tutor
16997 Views

What things can I be asked about at interview (for Cambridge Economics)?

Interview questions can be divided into a number of areas:The personal statement: if you mentioned outside reading and/or wrote an essay prize entry, to summarise your argument and discuss further related...

MT
2355 Views

Outline and evaluate the multi-store model of memory.

The multi-store model was developed by Atkinson and Shiffrin (1968) in order to make the distinction between the separate stores of memory; the sensory, short term and long term. Sensory memory is charact...

ML
Answered by Megan L. Psychology tutor
47822 Views

A curve has equation -2x^3 - x^2 + 20x . The curve has a stationary point at the point M where x = −2. Find the x-coordinate of the other stationary point of the curve.

Lets think about what stationary points actually mean. A stationary point of a curve is where the gradient is equal to 0. Illustrate by plotting the graph of y = x^3.We know that by differentiating the eq...

TS
Answered by Torty S. Maths tutor
3459 Views

Explain three ways in which the structure of the xylem vessels makes them well-adapted to their function.

The end walls are removed from each end, forming an uninterrupted tube, so water can pass through easily.Their walls are thickened with a woody substance called lignin, w...

HW
Answered by Hannah W. Biology tutor
55087 Views

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