The student still wants every run of the marble chip and hydrochloric acid experiment to take place at the same temperature. A thermostatically controlled water bath, a thermometer and a beaker are available.
[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(f)(iv)