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The oxygen on the OH (of the phenol) has a lone pair which it donates into the delocalised pi system of the ringThis activates the ring and there is now a high electron density.This is now strong enough t...

We know Newton's Law of Gravitation, which states that the force F between two bodies of masses M and m respectively, separated by distance R, can be given by: F = GMm/R<...

Polymers such as PET have various properties such as being flexibility, lighweight and good strenght to weight ratio that allow them to be ergonomically used by consumers. Polymers are also able to be pig...

Close analysis questions at A Level English require a lot of detailed attention to the text provided. In the extract based questions, examiners are looking for detailed understanding of language and its e...

An elastic collision is a collision where there is no loss of kinetic energy. Therefore, it can be said that, since KE is conserved, momentum is conserved. In other words the momentum and total kinetic en...