Chemistry GCSE
Reagent order and control
What Reagent order and control means in Chemistry GCSE, as defined for AQA.
Definition of Reagent order and control
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Reference: AQA
Dilute nitric acid is added before silver nitrate solution, because the nitric acid removes carbonate ions that would otherwise form a white precipitate and confuse the result.
Topics that use Reagent order and control
- Halides (AQA GCSE)
Related terms
Using Reagent order and control in the exam
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