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Chemical Tests for AQA Unit 2 AS Chemistry.
Test for Halides:

Add Nitric Acid to remove any Carbonates




Add Silver Nitrate




Formed A
Precipitate?



Yes No



Add Dilute Ammonia Fluoride




Dissolved
Precipitate?



Yes No


Chloride Add Conc. Ammonia




Dissolved
Precipitate?



Yes No


Fluoride Iodide




Chemistry AQA As Level Unit 2…

Page 2

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Test For group 2 Metals:

Add H2SO4




Formed A White
Precipitate?



No Yes



Add NaOH Ba2+




Formed A White
Precipitate?



Yes No


Mg2+ Ca2+




Test for carbonates:



Add Acid



CO2 Produced?



Yes No



Carbonates Present Carbonates Not Present




Chemistry AQA As Level Unit 2 Chemical Test Revision Flow Charts. **mod-man.co.uk**

Page 3

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Test for Sulfates:

Add Barium Chloride




White Precipitate
Produced?


Yes No



Sulfates Present Sulfates Not Present




Chemistry AQA As Level Unit 2 Chemical Test Revision Flow Charts. **mod-man.co.uk**

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