2h- Chemical Tests❗️ Flashcards
What colour is the precipitate formed for Cu 2+ copper (II) sulfate?
Pale blue
What colour is the precipitate formed for Fe 2+ Iron (II) chloride
Pale green
What colour is the precipitate formed for Fe 3+ Iron (III) chloride
Red brown
What colour is the flame test for Li +
Crimson red
What colour is the flame test for Na+
Yellow
What colour is the flame test for K+
Lilac
What colour is the flame test for Ca 2+
Orange red
What colour is the flame test for Cu 2+
Green
What’s the test and result for Ammonia (NH3)?
Damp red litmus paper - turns blue
What’s the test and result for CO2?
Bubble through lime water - turns cloudy/milky
What’s the test and result for Chlorine (Cl2) ?
Damp blue litmus paper - paper is bleached
What’s the test and result for hydrogen? (H2)
Lit splint to a test tube - burns with a squeaky pop sound
What’s the test and result for Oxygen (o2)?
Glowing splint relights
