Here's why:
* Elements: Water is made up of two elements: hydrogen (H) and oxygen (O).
* Chemical Bonding: These elements are chemically bonded together in a specific ratio: two hydrogen atoms and one oxygen atom (H₂O).
* New Substance: This chemical combination results in a new substance, water, with distinct properties different from either hydrogen or oxygen alone.
Key difference: Compounds are formed through chemical reactions, where the atoms of different elements are bonded together. Mixtures, on the other hand, are simply physical combinations of different substances where the individual components retain their properties.
Therefore, water is a compound because it is formed by the chemical combination of hydrogen and oxygen, creating a new substance with its own unique properties.