Three of the complex ions that are formed by Co3_ are [Co(H2O)6]3_, [Co(NH3)6]3_, and
Chapter 23, Problem 23.108(choose chapter or problem)
Three of the complex ions that are formed by Co3_ are [Co(H2O)6]3_, [Co(NH3)6]3_, and [CoF6]3_. These ions have the observed colors (listed in arbitrary order) yellow-orange, green, and blue. Match each complex with its color. Explain.
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