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CHEMICAL ANALYSIS - Coggle Diagram
CHEMICAL ANALYSIS
Positive Metal Ions
Flame test
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Use a roaring/ blue flame. Put substance on wire loop. Put loop in flame. Observe the colour of the flame.
Sodium Hydroxide (NaOH)
Add Sodium Hydroxide. Observe the precipetate colour. Add exess sodium hydroxide. Only Al+3 disolves
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Negative Non Metal Ion
The halide test
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Methord
- Add nitric acid to unknown substance
- Add silver Nitrate to solution
- Observe colour of precipetate
Carbonate test
Add acid to substance. See bubbles/ fizzing if there is a carbonate. Gas made is CO2. CO2 truns limewater from colourless to cloudy/ milky
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