When writing formulae, you don't need to worry about superscript or subscript numbers, just write it all on the same line, e.g. sulfate is SO42-
When writing equations, please use the following techniques:
- arrows are written as -->
- write all formulae as per the instruction above.
- leave spaces between the substances
- If balancing an acidified half equation, write the species being oxidised/reduced first, followed by any other species that are needed to balance it, followed by any electrons required to balance the charge, e.g.
MNO4- + 8H+ + 5e- --> Mn2+ + 4H2O not 5e- + MNO4- + 8H+ --> 4H2O + Mn2+
- Only include state symbols if the question asks for them
This is to help the automarking system identify the correct answers.