IGCSE Chemistry (0620) — October–November 2024, Paper 33
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 (containing the elements Li, K, Ca, Rb, Cr, Fe, Zn, Ag, Au, H, Al, N, I, He and Ne). Answer the following questions using only the…
Answer this question and get it marked →Oxygen, water and ethene have simple molecular structures. State the percentage of oxygen in clean, dry air.
Answer this question and get it marked →The list shows some gases in a sample of water: argon, hydrogen, nitrogen, oxygen. Choose from the list the gas that is essential for aquatic life. Draw a circle around your…
Answer this question and get it marked →Fig. 4.1 shows the displayed formula of compound A (serine), a molecule containing a hydroxyl (O–H) group, an amine (N–H) group and a carboxylic acid (–COOH) group. On Fig. 4.1…
Answer this question and get it marked →Table 5.1 shows some properties of five halogens (halogen / melting point /°C / boiling point /°C / atomic volume in cm³/mol): fluorine -220, -188, (blank); chlorine -101, -35,…
Answer this question and get it marked →This question is about metals. Metals are malleable and ductile. 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 chloride can be made by warming excess solid zinc oxide with dilute hydrochloric acid: ZnO(s) + 2HCl(aq) →…
Answer this question and get it marked →A student investigates the reaction of small pieces of magnesium oxide with excess dilute hydrochloric acid of three different concentrations. The time taken for each reaction to…
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