Explain if the combination of iron and copper sulfate is an example of a chemical reaction

Gay-lussac's law i think.

Where is the data? ? and graph

An instinctive behavior was tied to a different stimulus-an instinctive behavior was stopped due to lack of reinforcement-a new behavior was learned due to positive reinforcementin the aforementioned, the answer would be 'an instinctive behavior was tied to a different stimulus'.