A student investigates the rate of reaction between zinc granules and dilute sulfuric acid. The gas given off is collected in a gas syringe and the time taken to collect 40 cm³ of hydrogen is measured with a stopwatch. Each acid concentration is used only once.
[1 mark] Describe / Explain
Write your answer
＋ More symbols (IGCSE / A-Level — all subjects)
Calculus
Functions
Greek
Relations & logic
Sets & numbers
Vectors, matrices & stats
Physics
Chemistry
Preview
Write with Apple Pencil on iPad (or finger / mouse) — the AI reads your writing and marks it.
Tap to photograph your written answer
The AI reads your handwriting and marks it.
🧭Modelled on Cambridge 0620 · May/Jun 2025 · Paper 61 · Q2(e)