Write a balanced chemical equation that describes the equilibrium reaction of th

Question

Write a balanced chemical equation that describes the equilibrium reaction of the hexaaquocobalt(II) and tetrachlorocobalt(II) complex ions, in which the tetrachlorocobalt(II) species is a product. To do this, think about the following questions: what are you adding to the hexaaquocobalt(II) complex to convert it to the tetrachlorocobalt(II) complex? What molecule is displaced when the tetrachlorocobalt(II) complex is made? (Complex ions take the general form: [Ag(NH3)2]+. Include states-of-matter under the given conditions in your answer. Use the lowest possible whole number coefficients.)

Explanation / Answer

[Co(H2O)6]2+(aq) +4Cl- (aq) <------>CoCl42-(aq)+6H2O(l) [balanced chemical equation]

Cl- or chloride ions are added to the solution to convert hexaaquocobalt(II) to tetrachlorocobalt(II) complex ions.

water molecules are displaced from hexaaquocobalt(II) to form tetrachlorocobalt(II) complex ions

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