Suggest4 marksStandard
Calcium reacts with dilute hydrochloric acid to form a solution and a gas.
Suggest the equation for this reaction and describe what you would observe.
CAIE A Level Chemistry 9701 · Group 2
Calcium reacts with dilute hydrochloric acid to form a solution and a gas.
Suggest the equation for this reaction and describe what you would observe.
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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