You can distinguish between different anions (ions with a negative charge) by using one of the test for anions. Below is a lists of tests and their results for various anions.
|CO32-||Hydrocloric Acid||Carbon Dioxide given off|
|Cl-||Nitric Acid + Silver Nitrate||White Precipitate Formed|
|I-||Nitric Acid + Silver Nitrate||Bright Yellow Precipitate Formed|
|I-||Lead Nitrate||Yellow Precipitate Formed|
|NO3-||Aluminium + Sodium Hydroxide||Ammonia given off|
|SO42-||Hydrocloric Acid + Barium Chloride||White Precipitate Formed|