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Chemical detection

Chemical analysis

Forensic science- investigating substance that were involved in crime
Substances present in food- allergic reactions to certain food.
Checking purity of water- potentially dangerous substances
Qualitry control process- at the right purity- copper wire needs high purity, if not pure, cant condict
electricity

Qualitative analysis

Tells…

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Tests for Halides (Cl-, Br-, I- ) with Nitric Acid and Silver Nitrate
So basically you start off with one of them halides and add dilute nitric acid and then Silver nitrate
If you start with Cl- you get a WHITE precipitate of SILVER CHLORIDE
If you start with Br-…

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98 + 80 = 142 + 36

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