Image: Coloured-transition-metal-solutions
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Description: From left to right, aqueous solutions of: cobalt(II) nitrate, Co(NO3)2 (red); potassium dichromate, K2Cr2O7 (orange); potassium chromate, K2CrO4 (yellow); nickel(II) chloride, NiCl2 (green); copper(II) sulfate, CuSO4 (blue); potassium permanganate, KMnO4 (violet).
Title: Coloured-transition-metal-solutions
Credit: No machine-readable source provided. Own work assumed (based on copyright claims).
Author: No machine-readable author provided. Benjah-bmm27 assumed (based on copyright claims).
Usage Terms: Public domain
License: Public domain
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