The properties of the compounds vary from their constituent.
A compound is formed due to the chemical combination of two or more elements in a fixed ratio by mass.
Example for compounds:
- Water (\(H_2O\))
- Backing soda (\(NaHCO_3\))
- Common salt or Table salt (\(NaCl\))
Where, water is composed of one oxygen atom and two hydrogen atoms in the ratio \(1 : 2\) by volume or \(8 : 1\) by mass.
Classification of compounds:
Compounds are classified into inorganic compounds and organic compounds based on the origin of chemical constituents.
Potassium hydroxide (Caustic potash)
Potassium, Hydrogen, Oxygen
Sodium hydroxide (Caustic soda)
Sodium, Oxygen, Hydrogen
Copper, Sulphur, Oxygen
Zinc carbonate (Calamine)
Zinc, Carbon, Oxygen
Hydrogen, Sulphur, Oxygen
Acetic acid (vinegar)
Carbon, Hydrogen, Oxygen
Carbon dioxide, carbon monoxide
Difference between the state of solids, liquids and gases:
|1. Arrangement of particles||Regular arrangement||No regular arrangement||No regular arrangement|
|2. Volume||Definite volume||Definite volume||No definite volume|
|3. Shape||Definite shape||Non definite shape||Non definite shape|
|4. Density||Affected by density||Affected by density||Not affected by density|
|6. Force of attraction||Maximum||Maximum||Minimum|
|7. Moment of particles||Cannot move||Slowly||Highly moveable|
|8. Compressibility||Not compressible||Hardly compressible||Highly compressible|