Atomic structure, bonding, reactions, kinetics, and thermodynamics. Pick a unit and one of its topics, a difficulty and how many questions; after each set you see the answer and a worked explanation for every question.
Units
9
Topics
84
Questions
8,600+
Days’ access
240
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Unit and topic
9 units, 84 topics. Choosing your own unit, topic and difficulty opens with full access; the free sample comes as a ready-made set.
Unit 1Atomic Structure and Properties
Moles and Molar Mass
Mass Spectroscopy of Elements
Elemental Composition of Pure Substances
Composition of Mixtures
Atomic Structure and Electron Configuration
Photoelectron Spectroscopy
Periodic Trends
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