IB skill practice

Evaluate IA-style chemistry methodology and validity

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

Paper 1, Paper 2 5 marks Difficulty 4

Conclusion supported by evidence

A conclusion in a university-style mechanism class claims the reaction is first order, but the data only show two trials with both concentration and temperature changed. Evaluate the conclusion. Use the labelled mechanism, pathway, data table, or method diagram before answering. Enter the answer and choose the interpretation that matches the HL chemistry evidence.

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