

A chemical property is any property of a substance that can only be observed and measured by a chemical change or reaction. Chemical properties cannot be determined by touch or by looking at the sample; The structure of a sample must be altered to make its chemical properties apparent.
Here are some examples of chemical properties:
Reactivity with other chemicals
Toxicity
Coordination number
Flammability
Enthalpy of formation
Heat of combustion
Oxidation states
Chemical stability
Types of chemical bonds that will form
More examples
Scientists use chemical properties to predict whether a sample will participate in chemical reactions. Chemical properties can be used to classify compounds and find applications for them. Understanding the chemistry of a substance helps in its purification, isolation from other chemicals, or identification in unknown samples.
Chemical and physical properties
Although chemical properties can only be revealed by the behavior of substances in chemical reactions, physical properties can be observed and measured without changing the composition of the sample. Physical properties include color, pressure, length, and concentration.





