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How should I improve my portfolio in order to achieve an A/A*?

In order to achieve the highest marks possible in A Level Fine Art, you must continuously make sure that you are hitting all of the Assessment Objectives (AOs) at different stages along your path. This can m...
DD
Answered by Deniz D. • Art tutor
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Ethane-1,2-diol can be dissolved in water to act as an anti-freeze in car radiators. Explain why ethane-1,2-diol is very soluble in water. (2)

Has O–H (bonds)OR has hydroxyl (groups) OR has hydroxy (groups) Forms hydrogen bonds with water (molecules)
PQ
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outline the mechanism for the nitration of methyl benzoate and show how sulfuric acid behaves as a catalyst

You will be given the equationThis reaction is an electrophilic substitution which is the most common reactions among benzene groups that you will come across at A levelThe question tells you that it is a ni...
MA
Answered by Monica A. • Chemistry tutor
5982 Views

Find the value of x in the equation 3x + 5 = 11

x is a positive number - the question for us is what the value of x is. To find this, we will have to rearrange the equation given. There are multiple ways of doing this. Firstly, we can make the equation si...
RC
Answered by Rory C. • Maths tutor
15156 Views

Explain the difference between elastic and inelastic collisions.

In all collisions, provided there are no external forces, momentum is conserved. This is the law of conservation of momentum. However, kinetic energy is not conserved in all collisions. An inelastic collisio...
EE
Answered by Ellie E. • Physics tutor
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