Identifying Substances C3 4.0 / 5 based on 5 ratings ? ChemistryTesting and analysing substancesGCSEAll boards Created by: niamhCreated on: 25-05-10 19:55 A positive flame test for Potassium ions will create... A lilac flame 1 of 22 A positive flame test for Sodium ions will create... A yellow flame 2 of 22 A positive flame test for Calcium ions will create... A brick red flame 3 of 22 A positive flame test for Lithium ions will create... A red flame 4 of 22 A positive test for Aluminium ions (Al3+) with sodium hydroxide will create... A cloudy precipitate 5 of 22 A positive test for Magnesium ions (Mg2+) with sodium hydroxide will create... A lilac precipitate 6 of 22 A positive test for Calcium ions (Ca2+) with sodium hydroxide will create... A white precipitate 7 of 22 A positive test for Copper ions (Cu2+) with sodium hydroxide will create... A blue precipitate 8 of 22 A positive test for Iron II ions (Fe2+) with sodium hydroxide will create... A green precipitate 9 of 22 A positive test for Iron III ions (Fe3+) with sodium hydroxide will create... A brown precipitate 10 of 22 When you add silver nitrate to chlorine... a white precipitate forms 11 of 22 When you add silver nitrate to bromine... a cream precipitate forms 12 of 22 When you add silver nitrate to iodine... a yellow precipitate forms 13 of 22 The test and result for sulfate ions is to... acidify with HCl, add barium chloride- white precipitate 14 of 22 when copper carbonate is strongly heated... it turns black 15 of 22 The test and result for carbonate ions is to... acidify with HCl, collect gas, turns limewater cloudy 16 of 22 The test and result for nitrate ions... add sodium hydroxide, turns litmus paper blue, smell of ammonia 17 of 22 When bromine water is added to a saturated compound... it stays brown 18 of 22 when zinc carbonate is strongly heated... it turns yellow 19 of 22 When bromine water is added to an unsaturated compound.... it goes colourless 20 of 22 What instrumental technique can be used to identify elements? atomic absorption spectroscopy 21 of 22 A positive flame test for Barium ions will create... An apple green flame 22 of 22
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