Chemistry 5070 · O Level · Exothermic and endothermic reactions

Exothermic and endothermic reactions — practice question

The diagram below is a reaction pathway diagram. Which equation is represented by this reaction pathway diagram?

  • A$\text{2H(g)} + \text{O(g)} \rightarrow \text{H}_2\text{O(g)}$
  • B$\text{H}_2\text{(g)} \rightarrow \text{2H(g)}$
  • C$\text{H}_2\text{O(g)} \rightarrow \text{H}_2\text{O(l)}$
  • D$\text{2O(g)} \rightarrow \text{O}_2\text{(g)}$

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