2. CHEMISTRY IS EVERYWHERE…And there is no way to escape
3. Chemistry is the science of matter, especially its chemical reactions, but also its composition, structure and properties. Chemistry is concerned with atoms and their interactions with other atoms, and particularly with the properties of chemical bonds.Chemistry is also concerned with the interactions between atoms (or groups of atoms) and various forms of energy (e.g.photochemical reactions, changesin phases of matter, separation ofmixtures, properties of polymers, etc.).
4. Chemistry is sometimes called "the central science" because it connectsphysics with other natural sciences such as geology and Biology. Chemistry is a branch of physical science but distinct from physics.
5. HISTORY: In retrospect, the definition ofchemistry has changed over time, as new discoveriesand theories add to the functionality of the science.Shown below are some of the standard definitions usedby various noted chemists:Alchemy (330) – the study of the composition of waters,movement, growth, embodying, disembodying, drawingthe spirits from bodies and bonding the spirits withinbodiesChymistry (1661) – the subject of the materialprinciples of mixed bodiesChymistry (1663) – a scientific art, by which one learnsto dissolve bodies, and draw from them the differentsubstances on their composition, and how to unitethem again, and exalt them to a higher perfectionChemistry (1730) – the art of resolving mixed,compound, or aggregate bodies into their principles;and of composing such bodies from those principlesChemistry (1837) – the science concerned with the lawsand effects of molecular forcesChemistry (1947) – the science of substances: theirstructure, their properties, and the reactions thatchange them into other substancesChemistry (1998) – the study of matter and the changesit undergoes.
6. INORGANIC CHEMISTRY ORGANIC CHEMISTRYTHE TWO BRANCHES