Chain Reaction: Chem 100 turns a full year of general chemistry into a game you'll actually want to play. LEARN THE ENTIRE YEAR 21 chapters spanning Chem 1A and 1B — measurement, atomic structure, electrons, periodicity, bonding, molecular shape, nomenclature, stoichiometry, reactions, solutions, gases, thermodynamics, kinetics, equilibrium, acids & bases, intermolecular forces, electrochemistry, solubility, nuclear, and organic chemistry. Every chapter includes key equations, worked examples, and a clinical-relevance note connecting the chemistry to medicine. DRILL IT AS A GAME The Timed Challenge races you across every topic. Chain correct answers to build your streak multiplier, watch the clock, and climb levels as questions get harder. Three lives — miss and one is gone. Every answer comes with a concise explanation, so even a miss teaches you something. BUILT FOR MED & PRE-MED Written for students headed into medicine: the curriculum emphasizes the chemistry that shows up in physiology, pharmacology, and the clinic — buffers and blood pH, gas laws and ventilation, kinetics and drug metabolism, electrochemistry and the ECG. • 21 complete chapters with worked examples • Hundreds of curated conceptual questions plus generated element questions • Streak multipliers, levels, lives, and an all-time best score • Clinical-relevance notes in every chapter • Clean, dark, distraction-free design