4. Draw linkage isomers and a crystal field splitting diagram for the tetrahedral complex [Mn(H₂O)3(SCN)]³+

(a) Name this coordination compound: [Ag(NH3)2]NO3. (b) Write the formula of pentaaquaisothiocyanatoiron(III) chloride.

Specify whether the following complexes have isomers.. (a) tetrahedral [Ni(CO)2(Cl)2]. (b) trigonal bipyramidal [Mn(CO)4NO]. (c) [Pt(en)2Cl2]Cl2

Four different octahedral chromium coordination compounds exist that all have the same oxidation state for chromium and have H2O and Cl as the ligands and counterions. When 1 mole of each of the four compounds is dissolved in water, how many moles of silver chloride will precipitate upon addition of excess AgNO3?