Chemical Analysis

positive result of a test for chlorine gas

positive result of a test for chlorine gas

bleaches damp blue litmus paper

positive result of a test for oxygen gas

glowing splint relights

positive result of a test for hydrogen gas

lit splint gives a squeaky pop

positive result of a test for carbon dioxide

limewater turns cloudy

positive result of a test for carbonate ions

gas which results from a reaction with hydrochloric acid turns limewater cloudy

how to test for sulfate ions

react with hydrochloric acid, then add barium chloride

positive result of a test for sulfate ions

white precipitate forms

how to test for halide ions

react with nitric acid then add silver nitrate

positive result of a test for chloride ions

white precipitate forms

positive result of a test for bromide ions

cream precipitate forms

positive result of a test for iodide ions

yellow precipitate forms

flame test result for lithium

crimson flame

flame test result for sodium

yellow flame

flame test result for potassium

lilac flame

flame test result for calcium

orange-red flame

flame test result for copper

green flame

how to test cations with the metal hydroxide test

react the substance with sodium hydroxide and observe the precipitate’s colour

metal hydroxide test result for copper

blue precipitate forms

metal hydroxide test result for calcium

white precipitate forms

metal hydroxide test for iron II

green precipitate forms

metal hydroxide test for iron III

brown precipitate forms

metal hydroxide test for magnesium

white precipitate forms

metal hydroxide test for aluminium

white precipitate forms then redissolves to colourless