Chemistry 0620 · IGCSE · Physical and chemical changes

Physical and chemical changes — practice question

Methane reacts with oxygen when it burns, producing carbon dioxide and water. What is the balanced equation for this reaction?

  • A$\text{CH}_4 + 2\text{O}_2 \rightarrow 2\text{CO}_2 + 2\text{H}_2\text{O}$
  • B$\text{CH}_4 + 2\text{O}_2 \rightarrow \text{CO}_2 + 2\text{H}_2\text{O}$
  • C$\text{CH}_4 + 2\text{O}_2 \rightarrow \text{CO}_2 + \text{H}_2\text{O}$
  • D$\text{CH}_4 + \text{O}_2 \rightarrow \text{CO}_2 + 2\text{H}_2\text{O}$

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