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Explain why alkenes can have stereoisomers

Alkenes have stereoisomers because no free rotation possible around the C=C double bond, as to do so would break the pi-bond between the two atoms. which requires energy to break.

JH
Answered by Jakub H. Chemistry tutor
3034 Views

Find the area of the surface generated when the curve with equation y=cosh(x) is rotated through 2 pi radians about the x axis, with 2<=x<=6

Use the formula for the surface area of revolution, which requires dy/dx. So find dy/dx = sinh(x) and substitute dy/dx and y into the formula with the limits provided in the question (2 and 6). Then evalu...

JH
4735 Views

Evaluate relative merits of monetary and fiscal policy measures for governments wanting reduced unemployment in the UK. (20 marks)

Introduction - definitions of monetary policy, fiscal policy,  and unemployment.

Monetary policy is expansionary - rate of interest decreased, value of savings decreased, spending increased, borrow...

KB
Answered by Kira B. Economics tutor
5903 Views

How do I structure my A- level History essay?

Don’t overlook structure, a clear and cohesive structure is essential for securing the top marks in any essay. Whether, it be history or a biology essay. Before even starting your essay, planning is a nec...

ET
Answered by Emily T. History tutor
2707 Views

A 1kg spring has an unloaded length 10cm and has an elastic constant of 100N/m. It is compressed to 6cm then placed facing upwards on the floor. When released it travels vertically upwards. How high does it jump? You may assume no energy is lost to heat o

This may at first look like a horrible SUVAT problem, but it is actually testing your ability to calculate energy transfers. It is helpful for these questions to first draw a diagram then work out what en...

PW
Answered by Philip W. Physics tutor
3630 Views

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