Consider the following tetrahedral complex ions: [Zr(H₂O)4]²+, [Zr(CN)4]²¯, and [Zr(OH)4]2. Arrange these in terms of increasing wavelength of the color they appear. [Zr(OH)4]²- < [Zr(CN)4]² < [Zr(H₂O)4]²+ [Zr(CN)4]²¯ < [Zr(OH)4]²- < [Zr(H₂O)4]²+ ○ [Zr(CN)4]²¯ < [Zr(H₂O)4]²+ < [Zr(OH)4]²- O [Zr(H₂O)4]²+ < [Zr(CN)4]²¯ < [Zr(OH)4]²- < [Zr(CN)4]²- O [Zr(OH)4]²-< [Zr(H₂O)4]²+

1. What is the balanced net ionic equation for the equilibrium involving complex ions, CoCL42- and [Co(H2O)6]2+. 2. When heating the mixture the color was blue and when cooled it was pink. Based on this, is the forward reaction endothermic or exothermic and why? What is the balanced net ionic equation when heat is included?  3. How could an alcohol solution of CoCL2 beused to predict rain?

For which of the following octahedral complexes are isomers possible? Draw all the isomers. a) [Co(Cl)2(en)(NH3)2]+  b) [W(CO)4(py)2]

Balance this equation and balanced reaction equation and the quantities included in the procedure to calculate the theoretical yield of K[Cr(C2O4)2(H2O)2]·2H2O.

For the complex [Co(en)2(OH)2]OH, what is the charge on the complex ion? O -1 +1 O -3 +3

A compound formula with brackets is called a coordination complex, and the structure looks like a covalent compound with a transition metal central atom. The bonding that happens is often a hybrid of covalent and metallic bonding.   One method of extracting silver from mined ore is by using a complex, K[Ag(CN)2], to make the silver soluble in water. The complex is then isolated to recover the silver using the following chemical equation.   2 K[Ag(CN)2] (aq) + Zn (s) → 2 Ag (s) + Zn(CN)2 (aq) + 2 KCN (aq)  a.) 5.00 L of 1.25 M K[Ag(CN)2] is mixed with 215.5 g of zinc. Identify the limiting reactant and determine how many grams of silver are produced.  b.) The quality control chemists at the mine record collecting 672.4 g of silver. What is the yield of this reaction?

Write the chemical formula of the following complex ions. formula name tricarbonatomanganate(II) hexafluorotitanate(II) olo Ar tetrafluoroferrate(III)

Naming complex ions Name the following metal complexes or complex ions: formula [Mo(en)3]** [Au(OH), (CO),] 3+ [Cr(H₂O)₁]** name ☐ ☐ ☑ 5

Provide names for each complex ion: [Cr(H2O)6]3+ [Cu(CN)4]2- [Fe(NH3)5Br]SO4 [Co(H2O)4(NH3)(OH)]Cl2