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14 cards from this deck
Dissolve and remain in solution
Precipitate/form solid crystals that settle
Hydrochloric acid (HClHClHCl)
Copper(II) oxide (CuOCuOCuO)
Copper(II) chloride (CuCl2CuCl₂CuCl2)
Increases reaction rate
Excess CuOCuOCuO remains undissolved
Remove unreacted excess CuOCuOCuO
Increase salt concentration
Cool solution slowly
CuCl2+H2OCuCl₂ + H₂OCuCl2+H2O
Ensures all acid neutralised
Pure crystals form as solution cools
Insoluble metal base
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