IGCSE Chemistry (0620) — October–November 2024, Paper 53
3 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →Question 1 · 20 marks · Energetics: measuring temperature change
You are going to investigate the temperature change when solid P dissolves in water. Read all of the instructions carefully before starting the experiments. You are going to do…
Answer this question and get it marked →Question 2 · 14 marks · Experimental techniques: heating solids (water of crystallisation)
You are provided with two solids: solid R and solid S. Do the following tests on solid R and solid S, recording all of your observations at each stage. Tests on solid R: Transfer…
Answer this question and get it marked →Question 3 · 6 marks · Experimental techniques: planning a separation and percentage-mass investigation
A mixture contains three solid compounds: aluminium oxide, calcium carbonate and calcium chloride. Table 3.1 gives some information about the three compounds in the mixture (name…
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