(3)Central science in 21st century among natural sciences Paleontology Biology(生物学) Biophysics (古生物学) (生物物理学 Biochemistry Medicine Geochemistry ↑ Physics Geology (物理学) Chemistry (地质学) (化学) Chemical physics Chemical engineering Nuclear chemistry Cosmochemistry Astronomy Astrophysics (天体化学) (天文学) (天体物理学) Interrelations among the natural sciences
Chemistry (化学) Biochemistry Medicine Nuclear chemistry Biophysics (生物物理学) Paleontology (古生物学） Biology(生物学) Chemical physics Chemical engineering Geology (地质学) Geochemistry Cosmochemistry (天体化学) Astronomy （天文学） Physics (物理学) Astrophysics (天体物理学） (3) Central science in 21st century among natural sciences Interrelations among the natural sciences
Preface 1.1 Chemistry---the central science full of practicability and creativity 1.2 Features of chemical changes 1.3 History,revival and development of inorganic chemistry 1.4 How to study easily but efficiently inorganic chemistry
1.1 Chemistry---the central science full of practicability and creativity 1.2 Features of chemical changes 1.3 History, revival and development of inorganic chemistry 1.4 How to study easily but efficiently inorganic chemistry Preface Preface
1.2 Features of chemical changes 1.Qualitative change(化学变化是质变) *Formation of new substances *Formation of new chemical bonds with concomitant cleavage of old ones H2+02→H20 化学变化 242,6Cm(锔)+42He→245gCf(锎)+'n physical reaction
1.2 Features of chemical changes 1. Qualitative change (化学变化是质变 ) 242 96Cm( 锔)+ 4 2He → 24598Cf（锎） + 1 0n physical reaction H 2+O 2 → H 2O 化学变化 ☆ Formation of new substances ☆ Formation of new chemical bonds with concomitant cleavage of old ones