Oxidation State and Isomers in Octahedral Complex

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Oxidation state/isomers
For questions 5-7, determine the oxidation state of the metal in each of the following complexes. Draw ALL linkage isomers and stereoisomers for each complex CLEARLY showing enantiomers. Where possible, label each isomer as cis, trans, fac, mer, Δ and/or Λ. You must properly use shorthand notation for multidentate ligands. Note: do not consider the chirality of ligands. Be careful! Not all isomers can be labeled and you will lose credit for mislabeled as well as duplicate structures.
5. K[RuCl3(NH3)3]
6. Na[Nb(en)(ox)Cl2]
7. [YenF2(CO)2]Cl

Answers

5. Potassium (K) has a charge of +1. So, to maintain electrical neutrality the complex ...