Unit 5 Section 4 [Co(H2O)6],2+ Complex Ion Solution and Precipitate - Pink 0.0 / 5 ? ChemistryInorganic ReactionsA2/A-levelAQA Created by: mtgriffithsCreated on: 23-02-16 14:47 [Co(H2O)6],2+ Pink solution 1 of 6 With OH-(aq) or NH3(aq) Blue-Green precipitate of Co(H2O)4(OH)2 2 of 6 With excess OH-(aq) No change 3 of 6 With excess NH3(aq) Straw coloured/pale brown solution of [Co(NH3)6]^2+ 4 of 6 With Na2CO3(aq) Pink precipitate of CoCO3 5 of 6 With conc. HCl [CoCl4]^2- Blue solution 6 of 6
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