IGCSE Chemistry (0971) — May–June 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 the structures of seven substances A-G (A giant covalent; B a methanol-type molecule; C nitrogen N2; D a methanoic-acid-type molecule; E oxygen O2; F caesium…
Answer this question and get it marked →Blood plasma is the liquid part of blood. Table 2.1 shows the mass, in mg, of some ions present in 100 cm3 of blood plasma: Ca2+ (calcium) 10.0, Cl- (chloride) 365.6, HCO3-…
Answer this question and get it marked →Fig. 3.1 shows the apparatus used to electrolyse molten magnesium chloride, connected to a power supply, with an unreactive gas blown in and molten magnesium collecting. Label the…
Answer this question and get it marked →Some plants produce ethene gas. Draw the displayed formula for a molecule of ethene.
Answer this question and get it marked →An atom of sulfur is represented by the symbol 34/16 S. Describe this atom of sulfur in terms of: the position of the electrons, neutrons and protons in the atom; the number of…
Answer this question and get it marked →Solid nitrogen pentoxide, N2O5, decomposes to produce nitrogen dioxide gas and oxygen gas. Complete the equation by adding the missing state symbols: 2N2O5(s) - 4NO2(.....) +…
Answer this question and get it marked →Iron and copper are transition elements. They are malleable and are good thermal and electrical conductors. State three other physical properties of iron.
Answer this question and get it marked →This question is about carboxylic acids and alkanes. Table 8.1 shows the names, formulae and boiling points of some carboxylic acids: methanoic acid HCOOH 101; ethanoic acid…
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