Podcast
Questions and Answers
Solutions of metal aqua ions react as acids with aqueous ______.
Solutions of metal aqua ions react as acids with aqueous ______.
sodium hydroxide
______ reacts with NaOH to form a green precipitate.
______ reacts with NaOH to form a green precipitate.
Cr3+
______ has a violet solution as its metal-aqua ion.
______ has a violet solution as its metal-aqua ion.
Cr3+
______ forms a blue precipitate when reacted with NaOH.
______ forms a blue precipitate when reacted with NaOH.
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______ does not change when excess sodium hydroxide is added.
______ does not change when excess sodium hydroxide is added.
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______ produces a white precipitate when reacting with NaOH.
______ produces a white precipitate when reacting with NaOH.
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The formula for chromium hydroxide precipitate is ______.
The formula for chromium hydroxide precipitate is ______.
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______ forms a brown precipitate when reacted with hydroxide.
______ forms a brown precipitate when reacted with hydroxide.
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Cobalt aqua ions in solution appear as a ______ solution.
Cobalt aqua ions in solution appear as a ______ solution.
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The precipitate formula for nickel hydroxide is ______.
The precipitate formula for nickel hydroxide is ______.
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[Cr(H2O)6]^{3+} is a violet solution that turns to a ______ precipitate with NH3.
[Cr(H2O)6]^{3+} is a violet solution that turns to a ______ precipitate with NH3.
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The ion [Mn(H2O)6]^{2+} is a pale pink solution that produces a ______ precipitate with NH3.
The ion [Mn(H2O)6]^{2+} is a pale pink solution that produces a ______ precipitate with NH3.
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[Fe(H2O)6]^{2+} results in a ______ solution before NH3 is added.
[Fe(H2O)6]^{2+} results in a ______ solution before NH3 is added.
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[Fe(H2O)6]^{3+} is a yellow solution that forms a ______ precipitate upon reaction with NH3.
[Fe(H2O)6]^{3+} is a yellow solution that forms a ______ precipitate upon reaction with NH3.
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[Co(H2O)6]^{2+} appears as a pink solution, transforming to a ______ precipitate with NH3.
[Co(H2O)6]^{2+} appears as a pink solution, transforming to a ______ precipitate with NH3.
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[Ni(H2O)6]^{2+} solution is green, which turns to a ______ precipitate when mixed with NH3.
[Ni(H2O)6]^{2+} solution is green, which turns to a ______ precipitate when mixed with NH3.
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[Cu(H2O)6]^{2+} starts as a blue solution and produces a ______ precipitate with NH3.
[Cu(H2O)6]^{2+} starts as a blue solution and produces a ______ precipitate with NH3.
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[Zn(H2O)6]^{2+} appears as a colourless solution that leads to a ______ precipitate when NH3 is added.
[Zn(H2O)6]^{2+} appears as a colourless solution that leads to a ______ precipitate when NH3 is added.
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With excess NH3, [Cr(NH3)6]^{3+} forms a ______ solution.
With excess NH3, [Cr(NH3)6]^{3+} forms a ______ solution.
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Excess NH3 results in a ______ solution for [Cu(NH3)4(H2O)2]^{2+}.
Excess NH3 results in a ______ solution for [Cu(NH3)4(H2O)2]^{2+}.
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Study Notes
Metal Ions Reactions with Hydroxide Ions
- Metal aqua ions react with sodium hydroxide solutions, sometimes forming further reactions with excess hydroxide
Transition Metal Ions and Reactions with NaOH
- Different transition metal ions exhibit various reactions with hydroxide ions
- The initial solution color and subsequent precipitates or changes in color depend on the metal ion involved
- The table shows examples of the reactions of transition metal ions with sodium hydroxide and excess sodium hydroxide
Transition Metal Ions and Reactions with Ammonia
- Metal aqua ions react with aqueous ammonia, similar to the reactions with hydroxide ions
- The table illustrates reactions and colors for each ion with ammonia
- The reactions vary based on the metal ion involved
- Including the initial color and resulting precipitate or color changes
General Note
- The number of hydroxide or ammonia molecules substituted in the products is the same as the charge on the initial metal ion. This can be remembered as an easy way to determine the formulas.
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Description
This quiz explores the reactions of metal aqua ions with hydroxide and ammonia solutions, focusing on transition metal ions. It covers initial solution colors, precipitates formed, and variations between different metal ions. Test your understanding of these chemical interactions and their visual changes.
