# solid,liquid and gas
this answer has chemical propertiesnot property....To observe the chemical properties of a substance you must try to change it to another substance.another one is : A chemical property of methane ( natural gas) is that it can catch fire and burn in air.
I can give three : Physical, Biological and Chemical
chemical property
it is chemical change
It is a not a chemical property
It is a change of a physical property - for example the variation of temperature.
No one chemical property is known for Helium.
One chemical property is reactivity.
A physical property is one that can be changed without altering the chemical formula of the substance, e.g., gas to liquid. A chemical property is one that is unique to that substance and altering it will change that substance chemically, e.g. density or molar mass.
Charcoal and Gasoline are both examples of chemical energy.
Density is usually considered a physical property rather than a chemical one. However, there are many correlations between chemical nature and density: For example, elements with higher atomic numbers are usually denser than those in the same periodic group with a lower atomic number.