Chemical properties and changes

Na2O

Sodium oxide

CO

Carbon monoxide

CO2

Carbon dioxide

N2S4

Dinitrogen tetrasulfide

H2S

Hydrogen sulfide

H3PO4

Phosphoric acid

Physical change

A change in a substance that does not involve a change in the identity of the substance

Physical property

Characteristic of a substance that can be observed or measured without changing the substance's identity

Chemical change

A process that involves rearrangement of the molecular or ionic structure of a substance

Chemical property

Property of a substance that is observed during a reaction in which the chemical composition or identity of the substance is changed

Dissolving

Process of a substance forming a solution with a solvent

Rusting

The chemical reaction of iron with oxygen to form iron oxide

Oxidation

Chemical reaction in which a material gives up electrons, as when the material combines with oxygen

Burning

Rapid oxidation of a material in the chemical process of combustion

Corroding

Gradual destruction of a material by chemical or electrochemical reaction with its environment