C.) Is heating of cobalt (ii) chloride crystals a chemical change or a physical change (Imk)

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Chemistry

Booth

2 June, 00:16

C.) Is heating of cobalt (ii) chloride crystals a chemical change or a physical change (Imk)

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Allison French · Answer 1

Answer: Heating the hydrated forms of cobalt chloride reverses the reactions above, returning cobalt chloride to the blue, water-free, or anhydrous, state. Water is "liberated" in these reactions, known as dehydration reactions.