Search over 10,000 free study notes

This questions requires knowledge of the base pairing in DNA, plus a little bit of maths! As you know, bases on the 2 DNA strands always pair in the same way: A (adenine) with T (thymine) , C (cytosine...

Diffusion is defined as the movement of a substance from a high concentration to a low concentration, meaning they move from where there are lots of them to where there are fewer. Diffusion of these mo...

Le Chatelier's Principle states that for a reaction which is reversible, where there is a change made to the reaction conditions the equilibrium position will shift to oppose the change.

...

Aluminium is higher on the reactivity series than iron. This means that it is more reactive than iron. As a result, it displaces iron from the compound iron oxide in a displacement reaction, creating a...

We can write out 3! (three factorial) as 3x2x1, and we can write out 5! as 5x4x3x2x1.
This means that, since 3x2x1 is on the top and the bottom of the fraction, it cancels out.
This leaves ...