DSE Chemistry rewards steady, active revision far more than last-minute cramming — yet most students still revise by re-reading notes the night before a test. We built ipassed.gg to change that: to turn DSE Chemistry revision into short, daily, mastery-based practice that builds real confidence across the whole HKDSE Chemistry curriculum — every compulsory topic and elective.
Everything here is built around two ideas proven to make knowledge stick — active recall (retrieving facts from memory) and spaced repetition (revisiting them over time):
Our content follows the current HKDSE Chemistry curriculum (HKEAA), covering the compulsory topics — from Planet Earth, Microscopic World and Metals to Acids and Bases, Redox Reactions and Chemical Cells, Rate of Reaction, Chemical Equilibrium and the Chemistry of Carbon Compounds — together with the elective topics, including the mole calculations, redox and equilibrium skills the papers expect.
We are a small team of educators who know how demanding HKDSE science can be. We understand the precise wording, command words and depth that HKEAA examiners look for, and we design every question and note with that in mind — not just to test you, but to teach you.