Suggest4 marksStandard
Calcium reacts with dilute hydrochloric acid. State the observations you would make when this reaction occurs, and write the ionic equation for the reaction.
CAIE A Level Chemistry 9701 · Group 2
Calcium reacts with dilute hydrochloric acid. State the observations you would make when this reaction occurs, and write the ionic equation for the reaction.
4 marks, so the mark scheme is looking for about 4 separate creditworthy points. Making the same point twice in different words earns it once.
Suggest means: Apply what you know to an unfamiliar situation. There may be more than one acceptable answer. Reason from the principle you have learned to the new context, and say which principle you are using.
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