When comparing the colors of the following four compounds, which is most likely to appear green? [Co(CN)6]3− [Co(H2O)6]3+ [Co(en)3]3+ [CoI6]3− and why?

[Co(H2O)6]3 is most likely to appear green,because of it physical nature and ph values.

- aluminum and copper chloride.

- the chloride ion to separate the aluminum from the oxygen so that the aluminum can react with the copper ions (and the water molecules).

- decrease the number of plants and animals living in the water.