Reactions of Aqueous Ions Flashcards

What is the product of the reaction between Fe2+ ions and carbonate solution?

The reaction between Fe2+ ions and carbonate solution forms a green FeCO(s) precipitate.

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What is the product of the reaction between Fe2+ ions and carbonate solution?	The reaction between Fe2+ ions and carbonate solution forms a green FeCO(s) precipitate.
Describe the difference between the reactions of 2+ ions and 3+ ions with carbonate solution.	The difference lies in the products formed. 2+ ions form metal carbonate precipitates, while 3+ ions form metal hydroxide precipitates and evolve CO2 gas. This difference is attributed to the greater polarising power of the 3+ ion due to its higher charge density.
How do 3+ ions react with carbonate solution?	When 3+ ions react with carbonate solution, a metal hydroxide precipitate (M(OH)3) is formed and CO2 gas is evolved.
Define precipitation reactions.	Precipitation reactions are chemical reactions in which an insoluble solid (precipitate) is formed when two solutions are mixed together.
Describe Lewis acids and bases.	Lewis acids are electron pair acceptors, while Lewis bases are electron pair donors.
Describe the reaction between 2+ ions carbonate solution.	The reaction between 2+ ions and carbonate solution results in the formation of a metal carbonate precipitate. For example, Cu2+ ions form blue/green CuCO3(s) precipitate.
What is the color of Fe(III) in aqueous solution?	Fe(III) appears yellow/brown due to hydrolysis reactions.
Describe the reaction between copper and excess NH3.	A ligand substitution reaction occurs, and the precipitate dissolves to form a deep blue solution.
What happens when aluminum hydroxide reacts with excess NaOH?	It dissolves to form a colorless solution of [AI(OH)4].
Define amphoteric.	Amphoteric substances can react and dissolve in both acids and bases.
What happens when OH1 and NH3 react with metal ions in limited amounts?	They form hydroxide precipitates through acid-base reactions.
Explain the acidity of metal aqua ions.	Metal aqua ions can generate acidic solutions due to equilibria that release H+ ions.
What are metal-aqua ions?	Metal-aqua ions are formed in aqueous solution and can appear in different colors.

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