1. The problem statement, all variables and given/known data Okay I've been scouring the internet for an hour now and cannot find the answer for the life of me. Which of these solutions turn purple when NiCl2 is added to it?: Ammonium hydroxide Sodium carbonate Potassium thiocyanate I can't find any ions in these solutions that would turn purple so I have no idea. Please help me! Thanks.