1.1: Essential Ideas of Chemistry Most everything you do and encounter during your day involves chemistry. Making coffee, cooking eggs, and toasting bread involve chemistry. The products you use—like soap and shampoo, the fabrics you wear, the electronics that keep you connected to your world, the gasoline that propels your car—all of these and more involve chemical substances and processes. Whether you are aware or not, chemistry is part of your everyday world. 1.1.1: Chemistry in Context 1.1.2: Phases and Classification of Matter 1.1.3: Physical and Chemical Properties 1.1.4: Measurements 1.1.5: Measurement Uncertainty, Accuracy, and Precision 1.1.6: Mathematical Treatment of Measurement Results 1.1.E: Essential Ideas of Chemistry (Exercises) 1.2: Atoms, Molecules, and Ions This chapter will describe some of the fundamental chemical principles related to the composition of matter, including those central to the concept of molecular identity. 1.2.1: Prelude to Atoms 1.2.2: Early Ideas in Atomic Theory 1.2.3: Evolution of Atomic Theory 1.2.4: Atomic Structure and Symbolism 1.2.5: Chemical Formulas 1.2.6: The Periodic Table 1.2.7: Molecular and Ionic Compounds 1.2.8: Chemical Nomenclature 1.2.E: Atoms, Molecules, and Ions (Exercises)