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Exams such as GCSEs and A-Levels are all about ticking off boxes and jumping through hoops. The English education system is designed in such a way that it is best to approach English exams in regard to th...

Protein synthesis consists of two stages- transcription and translation. Transcription takes place in the nucleus- this is where a strand of mRNA is formed. A section of DNA is unwound by...

An empirical formula is the simplest whole number ratio of atoms of each element present in the compound.1) Divide by atomic relative mass to find the number of moles. 2) Find a ratio between the moles. 3...

Answer: Most of the atom's mass must be concentrated in a small area at the centre of the atom. This is known as the nucleus.

There is no correct answer to this question, it is designed more to see how the pupil reasons. However, the student should show a common sense and logical analysis of the things that they are already awar...