Atomic structure. Periodic table of the elements. Chemical bonding (ionic, covalent, metallic). Intermolecular forces and hydrogen bonding. State of matter. Weight relations in chemical reactions. Oxidation number. Balance of chemical reactions. Thermodynamics. State functions. Equilibrium between phases. Homogeneous and heterogeneous chemical equilibria. The thermodynamic equilibrium constant. Solubility equilibria. Electrolytic dissociation. Solutions and colligative properties. Acid-base equilibria in aqueous solution: pH, hydrolysis, buffer solutions, indicators. Redox systems: electrode potentials, batteries, Nernst equation, electrolysis, Faraday's law.