aqueous anions

Cards (8)

what do you add to a carbonate ion to test for it?
dilute acid
what is the observation is carbonate ions are present?
the solution effervesces
CO2 gas is produced, causing limewater to turn from colourless to milky
what do you add to halide ions?
dilute nitric acid, and then add silver nitrate
what colour do chloride ions turn when dilute nitric acid/silver nitrate is added?
white precipitate
what colour do bromide ions turn when dilute nitric acid/silver nitrate is added?
cream precipitate
what colour do iodide ions turn when dilute nitric acid/silver nitrate is added?
yellow precipitate
how do you test for sulfate ions?
add dilute acid, and then add barium chloride/barium nitrate
what happens to sulfate ions when dilute acid/barium chloride is added?
a white precipitate forms