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Chemistry
A Level

Describe a 2 step synthesis to form pentan-1-ol from pentane.


Lesson on organic synthesis ( Unit 4 OCR A )Step 1/ Slide 1: Teach (unless told that knowledge is known, tips and pointers still can be given). Step 2/ Slide 2: Worked example (if necessary)....

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Describe the trend in ionisation energies down group 1.

Ionisation energies decrease going down group 1, firstly since the number of shells in the atom increases so the atomic radius is increased. There are also more electrons between the positively charged nu...

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The boiling point of the halogen elements increase down the group from chlorine to bromine to iodine. Please explain this trend for 3 marks.

The number of electrons in the halogen atom increases as you move down the group (1st mark achieved here), causing stronger London forces to arise between the molecules of said halogen (2nd mark achieved ...

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Describe the shape of, and bonding in, a molecule of benzene and explain why benzene does not readily undergo addition reactions.

Benzene is a planar, cyclical, hexagonal molecule, with the molecular formula C6H6. It consists of a ring of 6 carbon atoms with alternating single bonds and double bonds. The length...

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How to write a redox equation from half equations

There are three crucial steps in balancing redox half equations, which, when mastered, allow any two half equations, no matter how to complex, to be easily balanced. First, we balance the electrons, by de...

Answered by Jess H. Chemistry tutor
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