Complex Ions- Co 2+ Colbolt2+ Reactions and complexes 3.0 / 5 based on 1 rating ? ChemistryBonding & shapesA2/A-levelAQA Created by: RozieCreated on: 01-02-13 13:47 Colbolt aqua complex? Colour? [Co(H2O)6]2+ , Pink Solution 1 of 6 Colbolt complex formed with NaOH? Colour? [Co(H2O)4(OH)2], Blue-Green Precipitate 2 of 6 Colbolt complex formed with NH3? Colour? [Co(H2O)4(OH)2], Blue-Green Precipitate 3 of 6 Colbolt complex formed with excess NH3? Colour? [Co(NH3)6]2+, Straw Coloured Solution 4 of 6 Colbolt complex formed with sodium carbonate (Na2CO3)? Colour? CoCO3, Mauve Precipitate 5 of 6 Colbolt complex formed with concentrated HCl? Colour? [CoCl4]2-, Blue Solution 6 of 6
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