Descriptive inorganic chemistry UE Past Papers Questions.

A solution contain two of the Group I cations. A white precipitate forms on addition of 6M HCl. The precipitate is insoluble in hot water; the residure dissolves on addition of 6 M NH_3.

1. Which of the ions are present?
2. Which are absent?
3. Which remain undetermined ? Explain your reasoning . If any cations remain undetermined, what reaction could you perform to confirm?

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UNSOLVED

Write an ionic and net ionic equation fo the following reaction between and HCl.

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UNSOLVED

Write a balanced equation for the precipitation of nickel (II) hydroxide when is added to .

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Write a balanced equation to show that the complex ion is formed when is added to aqueous nickel(II) ion, .

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Briefly explain the relationship between the as common phenomena in organic compounds.

1. Polarization, covalency and solubility of inorganic compounds
2. Charge density, hydration and conductivity of ions.

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UNSOLVED