Chemistry 0620 · IGCSE · The characteristic properties of acids and bases

The characteristic properties of acids and bases — practice question

Farmers spread calcium oxide (lime) and ammonium salts on their fields. These substances are not applied at the same time because they react with each other. Which gas is produced in this reaction?

  • Aammonia
  • Bcarbon dioxide
  • Chydrogen
  • Dnitrogen

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