Search over 10,000 free study notes

Atoms are made up of three different types of particle. Protons and neutrons exist in the nucleus, while electrons orbit.

The relative charges of these particles mean that protons are positive whil...

Benzene to nitrobenzene / nitration of benzene. Conditions: concentrated nitric acid and concentrated sulfuric acid. Carried below 50^oC to avoid further substitution of nitro groups

Nitr...

The subjunctive is what's known as a "mood", which merely means that it's used in a different way to "normal" (indicative) verbs. That is, in most cases, to express an element of doubt...

A common question asked by a lot of students at all levels!

You must remember to always refer back to the mark scheme for the exam that you will be taking. When looking at past pap...

When rationalising, multiply the fraction by the denominator - so what that means is multiply the fraction by the square rooted number over the square rooted number. The numerators then multiply to give 6...