The quantitative core: states of matter and the gas laws, the mole and Avogadro constant, empirical/molecular formulas, balancing equations, and reacting-mass/volume calculations.
50 past Chemistry questions on this topic, spanning 2015 to 2025, grouped by year. Every question opens on the exact page of the official paper, with its marking scheme beside it.
Every past question on this topic, taken from the official exam papers and set out for printing. Free, no sign-up.
bonding, shapes of molecules, organic addition reactions
chemical equilibrium, kc, le chateliers principle
Every past question on this topic, taken from the official exam papers and set out for printing. Free, no sign-up.
short answer, ionic bonding, isotopes, hazards, carboxylic acids, oxidation, aromatic compounds, x-ray crystallography
chemical equilibrium, le chatelier, radioactivity, alpha decay
atomic theory, periodic table, chromatography, industrial chemistry, alloys
Questions come from the official State Examinations Commission papers. Every link opens the original PDF on examinations.ie. The topic packs reproduce the same questions unchanged, with the year, paper and question number printed on each one.