Chemistry 0620 · IGCSE · Physical and chemical changes

Physical and chemical changes — practice question

When heated, hydrated cobalt(II) chloride breaks down. $\text{CoCl}_2\cdot6\text{H}_2\text{O} \rightarrow \text{CoCl}_2 + 6\text{H}_2\text{O}$ Which of these statements about this reaction are correct?

  • A1 and 2
  • B1 and 3
  • C2 and 4
  • D3 and 4

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