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Unit 5 specification:
recall that transition elements in general can act as catalysts both as the elements and as their compounds
recall that transition metals and their compounds are important as catalysts and that their activity may be associated with variable oxidation states of the elements or surface activity, e.g. catalytic converters in car exhausts
explain why the development of new catalysts is a priority area for chemical research today and, in this context, explain how the scientific community reports and validates new discoveries and explanations, e.g. the development of new catalysts for making ethanoic acid from methanol and carbon monoxide with a high atom economy (green chemistry)