IB skill practice

Evaluate fuels and combustion products

Syllabus-aligned Chemistry skill. Draft skills remain inactive until production seed coverage is added.

Paper 1, Paper 2 5 marks Difficulty 5

Carbon dioxide from complete combustion

A hydrocarbon fuel in a lab safety debrief contains \(3\) carbon atoms per molecule. For complete combustion of one molecule, how many \(CO_2\) molecules form? Use the energy diagram labels first, then calculate carefully. Enter the answer and choose the interpretation that matches the chemistry.

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