add NAOH (sodium hydroxide) reacts to give insolub
calcium ions react with sodium hydroxide to give an insoluble precipate ca2+
cu2+ copper ions recat with sodium hydroxide to form a blue imsoluble preciptae
fe2+. iron ions recat with NAOH ..s odium hydroxide to give an insoluble coloured precipate of green
fe3+ ions react with sodium hydroxide to form an insolube precipate of red.brown..
alumjinim al3+ ions when recating with NAOH sodium hydroxide produce white insoluble coloured precipate but in excess sodium hydorxide it forms a colourless solution.
magnesium ions recat with NAOH sodium hydroxide to form a white inmsoluble preicipate.
test for ammounium ions+ add NAOH > gives off ammo
-ions test for carbonates ..
add acid, hydrochloric acid produces carbon dioxide co2 can be detected by bubblin teh solution through limewater is limewater turns cloude co2 is present.