19 terms

Section 2 IGCSE Chemistry Identification of gases and ions

STUDY
PLAY

Terms in this set (...)

test/result for solution with chloride ions
add dilute nitric acid and a few drops of silvernitrate --> white precipitate
test/result for solution with bromide ions
add dilute nitric acid and a few drops of silvernitrate --> cream precipitate
test/result for solution with iodide ions
add dilute nitric acid and a few drops of silvernitrate --> yellow precipitate
test/result for solution with sulfate ions
add dilute hydrochloric acid and a few drops of barium chloride solution --> white precipitate
test/result for solution with carbonate ions
add dilute hydrochloric acid or nitric acid -->solution turns cloudy in limewater
test/result for solution with ammonium ions
add aqueous sodium hydroxide to the solid and warm the mixture , red damp litmus paper will turn blue
test/result copper(ii) ions
add aqueous sodium hydroxide --> blue precipitate
test/result iron(ii) ions
add aqueous sodium hydroxide --> green precipitate
test/result iron(iii) ions
add aqueous sodium hydroxide --> red precipitate
test/result for oxygen
glowing splint --> relights in oxygen
test/result for carbondioxide
limewater ---> turns milky
test/result for chlorine
damp blue litmus paper turns red, then white (bleaching)
test/result for ammonia
damp red litmus paper turns blue
test/result for Na+
flame test -->yellow/orange flame
What is the flame test?
Clean the end of a piece of platinum or nichrome wire by dipping it into clean HCL and then placing it in a blue flame
test/result for K+
flame test -->lilac flame
test/result for Ca2+
flame test -->brick red flame
test/result for Li+
flame test -->red
test for hydrogen
mix with air and ignite/burns with a squeaky pop