General chemistry, serves as the very first chemistry course in college, builds the fundamental background for all the following courses like inorganic, organic, analytical and physical chemistry. These classes mainly discusses about the development history of chemistry. The role chemistry play in the modern world: daily life, school, factory etc., and the current situation and development prospect of chemistry. Moreover, it also includes the stoichiometry of compounds and chemical reactions, electronic structure of atoms and molecules; chemical bonding, periodic table of elements; electronic structure of atoms and molecules; correlation with the chemical reactivity of common elements, inorganic and organic compounds. Overall, the general chemistry, as a significant course, helps the students to enter the chemistry world.