Chemistry 0620 · IGCSE · Physical and chemical changes

Physical and chemical changes — practice question

Which reaction changes colour from white to blue?

  • Aadding water to anhydrous copper(II) sulfate
  • Badding water to hydrated copper(II) sulfate
  • Cheating anhydrous copper(II) sulfate
  • Dheating hydrated copper(II) sulfate

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