What colour change shows water is present using anhydrous cobalt(II) chloride?
White to blue.
Blue to white.
Blue to pink.
Pink to blue.
Flashcards for CIE IGCSE Chemistry Water, covering the key terms, formulae and methods you need to recall for Paper 1 and Paper 3 (Core) or Paper 2 and Paper 4 (Extended), plus Paper 5 or Paper 6. 25 cards, matched to the CIE IGCSE Chemistry (0620) specification.