Chemistry 0620 · IGCSE · Formulae

Formulae — practice question

Lime is produced by heating limestone. Which equation shows this reaction?

  • A$\text{CaCO}_3 \rightarrow \text{Ca} + \text{O}_2 + \text{CO}$
  • B$\text{CaCO}_3 \rightarrow \text{CaO} + \text{CO}_2$
  • C$\text{CaCO}_3 + \text{H}_2\text{O} \rightarrow \text{CaO} + \text{H}_2\text{CO}_3$
  • D$\text{CaCO}_3 + \text{H}_2\text{O} \rightarrow \text{Ca(OH)}_2 + \text{CO}_2$

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