Chemistry is the study of matter and the chemical reactions between substances. Chemistry is also the study of matter's composition, structure, and properties. Matter is essentially anything in the world that takes up space and has mass. Chemistry is sometimes called "the central science," because it bridges physics with other natural sciences, such as geology and biology. A basic chemical hypothesis first emerged in Classical Greece when Aristotle defined the four elements of fire, air, earth, and water. It was not until the 17th and 18th centuries when scientists such as Robert Boyle (1627-1691) and Antoine Lavoisier (1743-1794) began to reshape the old alchemical traditions into a rigorous scientific discipline. Table Of Content : 1 Introduction to Chemistry 2 Atoms, Molecules, and Ions 3 Mass Relationships and Chemical Equations 4 Aqueous Reactions 5 Gases 6 Thermochemistry 7 Introduction to Quantum Theory 8 Periodic Properties 9 Basic Concepts of Chemical Bonding 10 Advanced Concepts of Chemical Bonding 11 Liquids and Solids 12 Solutions 13 Chemical Kinetics 14 Chemical Equilibrium 15 Acids and Bases 16 Acid-Base Equilibria 17 Thermodynamics 18 Electrochemistry 19 Nuclear Chemistry 20 Nonmetallic Elements 21 Metals 22 Transition Metals 23 Organic Chemistry 24 Polymers 25 Chemistry and the Real World The eBooks app features allows the user to : Custom Fonts Custom Text Size Themes / Day mode / Night mode Text Highlighting List / Edit / Delete Highlights Handle Internal and External Links Portrait / Landscape Reading Time Left / Pages left In-App Dictionary Media Overlays (Sync text rendering with audio playback) TTS - Text to Speech Support Book Search Add Notes to a Highlight Last Read Position Listener Horizontal reading Distraction Free Reading Credits : Boundless (Creative Commons Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0)) FolioReader, Heberti Almeida (CodeToArt Technology) Cover by Designed by new7ducks / Freepik Pustaka Dewi, www.pustakadewi.com