Top answers

What's the difference between a noun and a pronoun?

Nouns and pronouns are very similar, so be careful not to get them confused! A noun is an object or a thing, for example: 'The cat is sleeping.' Here the noun in the sentence is cat . You can often spot a no...
AF
Answered by Abbigael F. • English tutor
45685 Views

How do I simplify fully (p^3 x p^4)/p^2?

At first this looks quite daunting as it combines a number of different indices (powers) and a fraction. The rules for indices are just something that you have to learn - so don't worry if you don't know the...
ER
Answered by Emily R. • Maths tutor
15140 Views

Why do ionisation energies increase across a period?

It's experimentally observed that ionisation energies have a general increase as one moves across the period: the first ionisation energy of lithium is ~500 kJ mol‑1, whereas that of neon is over 2000 kJ mol...
TD
Answered by Tom D. • Chemistry tutor
11774 Views

What is the difference between constructive and destructive waves?

So, constructive waves are the waves that build up the beaches. They have a large 'swash', which means they can carry deposits of sand and other materials far up the beach. They are much lower than destructi...
CB
Answered by C B. • Geography tutor
103884 Views

How do I revise for my English exam?

English exams can seem impossible to revise for, but that isn't the case. English exams can actually be the most fun to revise because it's less about remembering tonnes of specific facts and more about reme...
EP
8472 Views