Chemistry: Does the catalyst participate in the reaction?
Therefore, the relationship between the catalyst and the chemical reaction is probably as follows: 1. The catalyst itself does not react chemically with any of the chemical reactions, but only with its own characteristics to change the rate of chemical reactions; 2. Catalysts involved in chemical reactions , But before and after the reaction of its chemical properties, physical properties and quality characteristics such as no change
The catalyst does not participate in the reaction, except that the reaction rate is changed.
The current theory is generally believed that the catalyst to participate in the reaction, the formation of intermediates, and then re-decomposition of intermediates to generate the catalyst, so the quality and nature of the reaction before and after the same. Experiments have shown that although the nature and quality of the catalyst remain unchanged, some of its aspects, such as morphological changes, before the reaction of massive, post-reaction powder, indirectly prove the above theory. Now high school to do the problem generally according to the theory. Such as copper oxidation of copper oxide, copper oxide and then oxidation of ethanol to acetaldehyde, itself is reduced to copper, so copper is ethanol oxidation of acetaldehyde catalyst
