The arrangement, type, and ratio of atoms in molecules of chemical substances is called Chemical composition. Chemical composition changes when chemicals are added or subtracted from a substance, when the ratio of substances changes, or when other chemical changes occur in chemicals. Chemical composition can be expressed with a chemical formula, such as an empirical or molecular formula. For example, the chemical formula for water is H2O: this implies that each molecule of water is constituted by 2 atoms of hydrogen (H) and 1 atom of oxygen (O). Thus the chemical composition of water may be interpreted as a 2:1 ratio of hydrogen atoms to oxygen atoms.
Edelweiss Chemical Science Journal corresponds with many branches of science like organic chemistry, inorganic chemistry, physical chemistry, pharmaceutical chemistry, analytical chemistry, applied chemistry, biochemistry, chemical biology and many more. This Journal provides an open access platform for the young scientists and researchers from all over the globe to share their valuable information regarding the chemical science.