Substances Y and Z can act as oxidizing agents. Substance Y is green and substance Z is yellow. They can form the ions Y- and Z-, respectively - both of which are colorless. When a green solution of Y is mixed with a colorless solution containing Z- ions, the color changes from green to yellow. What are the products of the reaction

Ascientist wants to know how individual lions within a pride interact with each other in their own environment. to do this, the scientist sedates and tags all of the lions within a pride. then, he places several remotely-controlled video cameras near the lions' den and performs an observational field study. he collects continuous video footage over the span of one year, analyzes the video, and then forms conclusions based on his observations.