Task instructions
Use the current subject specification and marking guidance when adapting this task.
Show a complete solution to a multi-step chemistry problem, including assumptions and checking.
Practice workspace
Write notes or your response
25:00
Suggested approach
Identify the key issue; organise a reasoned response; justify decisions with evidence or professional principles; conclude with a clear next step.
Official-style scoring criteria
Accuracy; reasoning; organisation; relevance; communication; safety or professionalism where applicable.
Self-assessment rubric
Award for subject knowledge, reasoning, evidence, method and communication.