Section+2g

back to IGCSE chemistry = Tests for ions and gases = 2.37 describe simple tests for the cations i. Li +, Na + , K + , Ca 2+ using flame tests, ii NH 4+ using sodium hydroxide solution and identifying the ammonia evolved, iii Cu 2+, Fe 2+ and Fe 3+ using sodium hydroxide solution 2.38 describe simple tests for the anions: i. Cl −, Br − and I − , using dilute nitric acid and silver nitrate solution ii. SO 42 −, using dilute hydrochloric acid and barium chloride solution iii CO 32 −, using dilute hydrochloric acid and identifying the carbon dioxide evolved 2.39 describe simple tests for the gases hydrogen, oxygen, carbon dioxide, ammonia, chlorine
 * In this section you will be tested on your ability to**

= Section notes =

= Investigations =

= Resources =

Textbook
Pages: pages 93 to 96

Animations
Demo animation: [|testing for ions]

Worksheets
= Revision = [|Quizlet]