For example the formula of ethane is C 2 H 6. The ratio of C:H atoms is 2:6. The empirical formula of an alkane is based on the simplest ratio of carbon to hydrogen atoms: the simplest form of the C:H ...
You will complete eight required core practical activities if you are studying GCSE Chemistry, and 18 if you are studying GCSE Combined Science (five of these are in Chemistry). You could be asked ...
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