Key term for Edexcel GCSE Chemistry, used in Qualitative Analysis: Tests for Ions.
The polyatomic cation NH₄⁺; it releases ammonia gas when reacted with warm sodium hydroxide.
Ammonium ion appears in Edexcel GCSE Chemistry revision content for Qualitative Analysis, Hydrocarbons and Polymers, especially Qualitative Analysis: Tests for Ions and Unknown Salt Identification.
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