A compound is a substance in which atoms of different elements are chemically held to one another. A mixture is a substance made by combining two or more different materials in such a way that no chemical reaction occurs. A mixture can usually be separated back into its original components, a compound can not.
Compounds- Compounds are pure substances.
- They are made up of two or more elements combined chemically.
- The constituents of a compound are present in a fixed ratio.
- Compounds have fixed properties. For example, a particular compound will have fixed temperatures at which it melts and boils.
- A compound can have properties different from its constituents, as a new substance is formed when the constituents are chemically combined.
- The constituents of a compound can be separated only by chemical methods.
Mixtures- Mixtures are impure substances.
- They are made up of two or more substances mixed physically.
- The constituents of a mixture are present in varying ratios.
- Mixtures do not have fixed properties. Their properties depend on the nature of their components and the ratios in which they are combined.
- In mixtures, no new substance is formed. The properties of a mixture are the same as the properties of its constituents.
- The constituents of a mixture can be separated easily by physical methods.