Learning objective
Describe reactions of aqueous metal ions with ammonia.
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At a glance
5
Flashcards
7
Questions
Topic
Reactions of ions in aqueous solution (A-level only)
Subtopic
Aqueous ion tests (A-level only)
Study support
Understand this objective
Short explanation
In the subtopic Aqueous ion tests (A-level only), this AQA A-Level Chemistry 7405 learning objective focuses on describe reactions of aqueous metal ions with ammonia. It belongs to Reactions of ions in aqueous solution (A-level only), so revision should stay anchored to this exact subtopic rather than drifting into a generic GCSE-level chemistry summary. Approved keywords to use include ammonia. Ammonia reaction. means the chemical interaction that occurs when aqueous metal ions react with ammonia, often resulting in the formation of precipitates Avoid the mistake of students often incorrectly identify the colors of precipitates formed when aqueous metal ions react with ammonia, confusing them with those formed with sodium hydroxide; instead, to accurately describe the reactions, remember the specific colors associated with each metal ion when reacting with ammonia. For example, copper(II) ions produce a blue precipitate of copper(II) hydroxide with sodium hydroxide, but with ammonia, they form a deep blue solution of tetraamminecopper(II) complex. Always refer to reliable sources or color charts for correct identification For exam answers, when testing for metal ions with ammonia, remember that the formation of a precipitate indicates a reaction. Write down the expected precipitate color for each metal ion
Key concepts
Why it matters
This objective helps connect Aqueous ion tests (A-level only) to exam-style questions, flashcards, and revision notes for Reactions of ions in aqueous solution (A-level only).
Common mistakes
1 linked- Misidentifying Precipitate Colors: To accurately describe the reactions, remember the specific colors associated with each metal ion when reacting with ammonia. For example, copper(II) ions produce a blue precipitate of copper(II) hydroxide with sodium hydroxide, but with ammonia, they form a deep blue solution of tetraamminecopper(II) complex. Always refer to reliable sources or color charts for correct identification.
Revision tools
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Flashcards5 linked cards
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Practice Questions7 linked questions
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Revision notestopic notes
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Open revision notesRelated learning objectives
- Describe reactions of aqueous metal ions with sodium hydroxide.
Aqueous ion tests (A-level only)
- Identify carbonate, sulfate and halide ions using appropriate tests.
Aqueous ion tests (A-level only)
- Link observations to conclusions in qualitative analysis.
Aqueous ion tests (A-level only)
- Required practical: carry out test-tube reactions to identify cations and anions.
Aqueous ion tests (A-level only)
