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Cambridge IGCSE Combined Science practice

What is the balanced form of the equation C + O2 → CO2?

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MCQ

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Formulas

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What is the balanced form of the equation C + O2 → CO2?.

  1. A.C + O2 → CO2
  2. B.2 C + O2 → 2 CO2
  3. C.C + 2 O2 → CO2
  4. D.2 C + O2 → CO2

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Paper 3 structured question: Formulas

Paper 3Theory (Core)3 marks

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Balancing the Reaction

Consider the unbalanced equation for the combustion of propane: C3H8 + O2 → CO2 + H2O.

  1. a

    Analyse Balance the equation for the combustion of propane.

    Aim for approximately 3 distinct marking points.

    [3]