Question
Excess marble chips are added to 50 cm³ of dilute hydrochloric acid in a conical flask. The learner watches the flask until the reaction has finished.
[1 mark]
Describe / Explain
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Modelled on Cambridge 0620 · May/Jun 2025 · Paper 63 · Q1(d)(ii)
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Modelled on Cambridge 0620 · May/Jun 2025 · Paper 63 · Q1(d)(ii)