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Chemical Tests (Testing for gases (Carbon dioxide (Result - Limewater…
Chemical Tests
Testing for gases
Carbon dioxide
Result - Limewater bubbled through
Result - Turns milky white
Ammonia
Test - Damp red litmus paper
Result - Turns blue
Oxygen
Test - Glowing splint
Result - Splint relights
Chlorine
Test - Damp red litmus paper
Result - Turns white
Hydrogen
Test - Lighted splint
Result - Squeaky pop
Flame Tests
Lithium
Red
Sodium
Yellow
Potassium
Lilac
Calcium
Orange-red
Copper
Blue-green
Cation Wet Tests
Cu2+
Test - Sodium hydroxide
Result - Blue precipitate
Fe2+
Test - Sodium hydroxide
Result - Dark green precipitate
Fe3+
Result - Brown precipitate
Test - Sodium hydroxide
Anion Solution Tests
Cl-
Result - White precipitate
Test - Add nitric acid and then silver nitrate solution
Br-
Result - Cream precipitate
Test - Add nitric acid and then silver nitrate solution
I-
Result - Yellow precipitate
Test - Add nitric acid and then silver nitrate solution
Anion Tests
SO4-2
Test - add barium chloride solution
Result - white precipitate forms
CO3-2
Test - add dilute hydrochloric acid
Result - carbon dioxide gas is given off - test using limewater (should turn milky white)