Compounds are the substances consisting of two or more different types of elements in a fixed ratio of its atoms.
Difference between mixtures and compounds
| Compound | Mixture |
| Compounds are substances which can be formed by chemically combining two or more elements. | Mixtures are substances that are formed by physically mixing two or more substances. |
| Compounds fall under pure substances. | Mixtures can be categorized as impure substances. |
| The chemical composition of compounds is always fixed. | A mixture can have a variable composition of the substances forming it. |
| Compounds are always homogeneous in nature | Mixtures can either be homogeneous or heterogeneous in nature. |
| A new substance is formed after the constituents are chemically combined. So, a compound has different properties from its constituents. | No new substances are formed in mixtures and their properties are dependent on the properties of their respective constituents. |
Example of compounds includes water (H2O), Hydrogen Peroxide (H2O2), etc. You could see water’s chemical formula, it says it has 2 atoms of Hydrogen combined with 1 atom of oxygen and in hydrogen peroxide, it has 2 atoms of hydrogen and two atoms of oxygen.