Chemistry 0620 · IGCSE · Exothermic and endothermic reactions

Exothermic and endothermic reactions — practice question

What changes take place when hydrogen is combusted in oxygen?

  • Aendothermic; $\text{H}_2\text{O}$ only
  • Bendothermic; $\text{H}_2\text{O}$ and $\text{CO}_2$
  • Cexothermic; $\text{H}_2\text{O}$ only
  • Dexothermic; $\text{H}_2\text{O}$ and $\text{CO}_2$

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