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12 questions from this quiz
Soluble salt
Hydrochloric acid
Copper(II) oxide
Copper(II) chloride
To increase the reaction rate
Excess CuO remains undissolved
To remove unreacted excess CuO
Water evaporates, concentrating the salt
As the solution cools slowly
To ensure all acid is neutralised
They precipitate out of solution
\ceCuCl2\ce{CuCl2}\ceCuCl2 and \ceH2O\ce{H2O}\ceH2O
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