INTRODUCTION The nature of matter: orientation and background PART I EQUILIBRIUM: The properties of gases; The First Law: the concepts; the First Law: the machinery; the First Law in action: thermochemistry; the Second Law: the concepts; the Second Law: the machinery; Changes of state: physical transformations of simple mixtures; Changes of state: the phase rule; Changes of state: chemical reactions; Equilibrium electrochemistry: ions and electrodes; Equilibrium electrochemistry: electrochemical cells. PART II - STRUCTURE. Quantum theory; introduction and principles; Quantum theory; techniques and applications; atomic structure and atomic spectra; Molecular structure; symmetry: its description and consequences; Determination of molecular structure: electronic spectroscopy; Determination of molecular structure: resonance techniques; Statistical thermodynamics: the concepts; Statistical thermodynamicfs: the machinery; determination of molecular structure: diffraction techniques: the electric and magnetic properties of molecules; The structure and properties of macromolecules. PART III - CHANGE: Molecules in motion: the kinetic theory of gases; Molecules in motion: ion transport and molecular diffusion; the rates of chemical reactions; the kinetics of complex reactions; Molecular reaction dynamics; processes at olid surfaces; Dynamic electrochemistry. Table of data, answers to problems, Index