IGCSE Chemistry (0620) — October–November 2024, Paper 41
6 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →A list of chemical and physical processes A to H is shown: A combustion; B diffusion; C melting; D neutralisation; E photosynthesis; F reversible reaction; G roasting; H thermal…
Answer this question and get it marked →This question is about atomic structure and the Periodic Table. Define the term nucleon number.
Answer this question and get it marked →Copper(II) sulfate has the formula CuSO4. Aqueous copper(II) sulfate is a blue solution. A sample of aqueous copper(II) sulfate is made by adding excess copper(II) oxide, CuO, to…
Answer this question and get it marked →When magnesium nitrate is heated strongly, magnesium oxide is formed. The equation for this reaction is: 2Mg(NO3)2 → 2MgO + 4NO2 + O2. State the change in oxidation number of…
Answer this question and get it marked →Hydrogen is the first element of the Periodic Table. Hydrogen is used in fuel cells to produce electricity in vehicles. Name the substance which combines with hydrogen in a fuel…
Answer this question and get it marked →Natural polyamides are polymers made from amino acid monomers. State the type of polymerisation reaction that occurs when natural polyamides form.
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