What are clock reactions? give examples

Question

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Answer 1

A "clock reaction" is one that stays in a certain condition (or color) for a period of time, and then suddenly changes condition (or color).  The length of time before the change is controlled by the concentration of the reactants or the temperature or both.

The most famous is the "iodine clock reaction".

http://en.wikipedia.org/wiki/Iodine_cloc...

http://jchemed.chem.wisc.edu/JCESoft/CCA...

http://www.nvcc.edu/alexandria/science/I...