> wiki   Explore:images videos games  

Chemical composition

KidzSearch Safe Wikipedia for Kids.
Jump to: navigation, search

Chemical composition refers to the arrangement, type and ratio of atoms in molecules of substances. Chemical composition varies when chemicals are added or subtracted from a substance, when the ratio of substances changes, or when other chemical changes occur in chemicals.

The chemical composition of a substance determines the properties of the substance. This means that the way atoms are put together in something determines the color, density, strength, and other properties of the thing.