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ANALYSIS, FLAME TEST FOR METAL IONS, CHROMATOGRAPHY, TESTS FOR GASES,…
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CHROMATOGRAPHY
METHOD
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Place the paper in a solvent (e.g. water or ethanol), just below the line.
The solvent moves up the paper, carrying the substances with it.
Different substances move at different speeds, so they separate.
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A method used to seperate mixtures of soluble substances, including inks, dyes, and food colouring
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TESTS FOR GASES
TEST FOR OXYGEN
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If oxygen is present, the splint relights
TEST FOR HYDROGEN
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If hydrogen is present, you will hear a squeaky pop sound
TEST FOR CARBON DIOXIDE
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If CO2 is present, the limewater will turn cloudy/milky
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