# Chemical Property – Definition and Examples

A chemical property is a characteristic of matter that can only be observed and measured by performing a chemical reaction or chemical change. In other words, you have to change the chemical identity of a substance or rearrange its internal structure to know its chemical properties.

In contrast, a physical property is observable and measurable without changing the internal structure of matter.

### Examples of Chemical Properties

Matter has many chemical properties. Examples include:

• Acidity and basicity
• Catalytic ability
• Chemical bond formation
• Chemical reactivity
• Chemical stability
• Coordination number
• Corrosivity
• Electronegativity
• Enthalpy of formation
• Flammability
• Heat of combusion
• Oxidation states
• Solubility
• Toxicity

For example, rusting (a type of corrosion) is an example of a chemical property. In order to know iron rusts, it has to oxidize. Oxidation is a chemical reaction. So, a chemical change had to occur to know the property.

### Importance of Chemical Properties

It’s helpful to know the chemical properties of a substance because the information helps:

• Identify it
• Classify it
• Store it safely
• Know its hazards
• Predict its reactions with other samples
• Predict its uses
• Purify it
• Separate it from other chemicals

### References

• Emiliani, Cesare (1987). Dictionary of the Physical Sciences: Terms, Formulas, Data. Oxford University Press. ISBN 978-0-19-503651-0.
• Masterton, William L.; Hurley, Cecile N. (2009). Chemistry: Principles and Reactions (6th ed.). Brooks/Cole Cengage Learning.
• Meyers, Robert A. (2001). Encyclopedia of Physical Science and Technology (3rd ed.). Academic Press. ISBN 978-0-12-227410-7.
• Petrucci, Bissonnette; Herring, Madura (2011). General Chemistry: Principles and Modern Applications (10th ed.). Pearson Education Inc..