What are the oxidation numbers of each central metal atom in the following coordination compounds? K₃[Fe(CN)₆],[Cr(NH₃)₄Br₂]Br,[Ni(H₂O)₆]Cl₂,Na₂[TaF₇] A)3,3,3,5 B)3,3,2,7 C)-3,3,2,5 D)-3,1,2,5 E)3,3,2,5

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- For [Fe(CN)6]^3-, Fe is in a +3 oxidation state because each CN^- contributes -1, totaling -6, and the charge of the complex is -3.- In [Cr(NH3)4Br2]Br, Cr is in a +3 oxidation state. NH3 is neutral, Br in the complex contributes -1 each for a total of -2, and the overall charge outside the complex indicates an extra -1, summing up to a +3 oxidation state for Cr to balance the charges.- For [Ni(H2O)6]Cl2, Ni is in a +2 oxidation state because H2O is neutral and the 2 Cl^- ions outside the complex indicate a +2 charge for Ni to balance the -2 charge.- In Na[TaF7], Ta is in a +5 oxidation state because each F^- contributes -1, totaling -7, and Na+ contributes +1, leaving Ta to balance the remaining -6 charge with a +5 oxidation state.

What Are the Oxidation Numbers of Each Central Metal Atom