C3: Identifying and Analysing Substances (including Flame Tests)

Hey, here is a document mainly for students taking AQA Triple Science. This contains information from the C3 (chemistry) section. It involves indentifying and analysing substances, as well as flame tests and reactions with acids. I hope this helps you to revise! Please rate and comment on how to improve :D

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C3: Identifying and Analysing Substances

A range of chemical tests can be used for the detection and
identification of elements and compounds.

Instrumental methods that are quick, accurate and sensitive have
been developed to identify and measure substances, often in very
small samples.

These methods are used to monitor products,…

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Sulfate ions in solution produce a white precipitate with barium
chloride solution in the presence of dilute hydrochloric acid.
Ammonium ions react with sodium hydroxide solution to form
ammonia.

Ammonia gas turns damp litmus paper blue.

Nitrate ions are reduced by aluminium powder in the presence of
sodium hydroxide solution…

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