IGCSE Chemistry (0620) — October–November 2024, Paper 32
8 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →Fig. 1.1 shows part of the Periodic Table, with these elements positioned: H (top); Na, K, Ca in Groups I-II; Al, Zn, S, Ar in the right-hand block; Br and I in Group VII; Ba in…
Answer this question and get it marked →Hydrogen chloride has a simple molecular structure. State two physical properties of a compound with a simple molecular structure.
Answer this question and get it marked →The list shows some substances present in water from natural sources: dissolved oxygen; calcium compounds; plastics; harmful microbes. State which one of these substances provides…
Answer this question and get it marked →Fig. 4.1 shows the displayed formula of compound A (malic acid): HO–C(=O)–CH(–O–H)–CH2–C(=O)–O–H, a molecule containing a hydroxyl (O–H) group and two carboxylic acid groups. On…
Answer this question and get it marked →Table 5.1 shows some properties of five halogens (halogen / melting point /°C / boiling point /°C / density in liquid state in g/cm³): fluorine -220, -188, (blank); chlorine -101,…
Answer this question and get it marked →This question is about metals. Many metals have high melting points and boiling points. State three other typical physical properties of metals.
Answer this question and get it marked →This question is about acids, bases and salts. Crystals of zinc sulfate are made by warming excess solid zinc with dilute sulfuric acid: Zn(s) + H2SO4(aq) → ZnSO4(aq) + H2O(l).…
Answer this question and get it marked →A student investigates the reaction of small pieces of calcium carbonate with excess dilute hydrochloric acid of three different concentrations. The three concentrations of acid…
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