Surface area effect on rate score
A solid reactant in a Auckland water-analysis lab is crushed so the exposed surface-area score is \(5\). If rate score is \(3\times\) surface-area score, calculate the rate score. Use the diagram labels before choosing the numerical relationship. Enter the answer and choose the interpretation that matches the chemistry.
Worked practice: chemistry evidence and answer
Use the chemical evidence first, then enter the result and interpretation that match it.
Write a full answer
Now write the response in full, in your own words — this is what the exam asks for. The AI marks it on the same moves you built above (focus, evidence, technique, judgement) and gives feedback on reasoning, evidence, and expression.