This section is a work in progress please be patient.
Eventually in this section there will be a selection of revision resources and web links for revision for the Chemistry GCSE @LHS. It will be divided into the 10 topics below:
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Percentage composition is also called atom economy. It is a measure of the amount of starting materials that end up as useful products.
e.g. how much iron can you extract from iron oxide or how much calcium oxide can you make from calcium carbonate. A high atom economy is important for efficiency and sustainability |
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