11 - Identifying transition metal ions

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Last updated 4:27 PM on 8/24/26
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5 Terms

1
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How do transition metals undergo precipitation reactions?

They react with hydroxide ions to form a metal hydroxide precipitate

<p>They react with hydroxide ions to form a metal hydroxide precipitate </p>
2
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What can be reacted with transition metals for a precipitation reaction to occur?

  • Aqueous sodium hydroxide

  • Ammonia


3
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What is the first test that can be carried out to identify a transition metal ion?

  1. Place 10 drops of each solution (Q, R, S) in a test tube

  2. Add NaOH solution drop-by-drop to each test tube until it’s in excess & record any observations

  3. Stand in a beaker of hot water for 10 minutes


<ol><li><p>Place 10 drops of each solution (Q, R, S) in a test tube</p></li><li><p>Add NaOH solution drop-by-drop to each test tube until it’s in excess &amp; record any observations</p></li><li><p>Stand in a beaker of hot water for 10 minutes</p></li></ol><p></p>
4
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What is the second test that can be carried out to identify a transition metal ion?

  1. Add 10 drops of each solution (Q, R, S) into a different test tube with Na2CO3

  2. Shake & record observations


<ol><li><p>Add 10 drops of each solution (Q, R, S) into a different test tube with Na<sub>2</sub>CO<sub>3</sub></p></li><li><p>Shake &amp; record observations</p></li></ol><p></p>
5
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What can we conclude about Q, R & S?

  • Q: iron (III) ions

  • R: copper (II) ions

  • S: iron (II) ions


<ul><li><p><strong>Q:</strong> iron (III) ions</p></li><li><p><strong>R: </strong>copper (II) ions</p></li><li><p><strong>S:</strong> iron (II) ions</p></li></ul><p></p>