An introduction to chemistryFor a one-page answer to "what is chemistry ?", visit whatischemistry.info.
This introduction to chemistry is intended to provide you the basic concepts of chemistry. Once you master these concepts, you will be able to understand more advanced articles about chemistry.
In The structure of matter, you will learn what the atoms (the buildings blocks of matter) are made of, and how atoms can combine to form molecules.
In The states of matter, you will learn the three ways the ways molecules and ionic compounds organize between themselves.
In The mole, you will learn about a very useful unit, that chemists use daily.
In Chemical reactions, you will learn what are chemical reactions, how we can categorize them, and some of their properties.