Chemistry 0620 · IGCSE · Identification of ions and gases

Identification of ions and gases — practice question

Which reaction results in the formation of a white-coloured substance?

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

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