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Vocab: Songs, TV, Films. To learn a word you have to see it, hear it and say it at least 5 times.
Grammar: Read. Why? Because the more you see grammar in use, the more you will reproduce it in wr...

The melting/boiling point of a substance determines what state of matter it takes at a certain temperature.

In Cl2 there are covalent bonds between the atoms forming simple molecules. The...

When a reaction is feasible ΔG = 0. Rearrange the equation ΔG = ΔH - TΔS. So that when ΔG = 0,       T = ΔH / ΔS.

Must convert ΔS from JK^-1mol^-1 to ...

Historiography is a term that in my experience unnecessarily frightens some people studying at A-level. In some ways it does represent a shift from simpler primary source based analysis, but in reality...

Let us take a binary number 10010111. To make conversion easier let us write down numbers 0 to 7 under this binary number starting from the right side.

These numbers will...