5 Minutes in Chemistry is the study series from chemistery.net — the blog behind the classic SN1 · SN2 · E1 · E2 comparison chart. Each sheet condenses one topic onto one printable page: understand it, memorize it, test yourself. Five minutes. Next topic.

Built for advanced-level high school and first-year college chemistry (Chem 101): 56 sheets across three volumes, US Letter + A4, designed to print. Grab the free sheets to see the exact format before you buy.