Goes over two examples that highlight the differences between catalysts and intermediates. A catalyst is used at the beginning of the reaction and regenerated at the end. An intermediate is produced during the reaction but no longer exists by the end.
BasicStudents matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient)Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
AdvancedStudents matched to this level are ready for material that requires superior performance and mastery.