* Flammability: The ability of a substance to burn in the presence of oxygen (e.g., wood, gasoline). This involves chemical reactions where the original substance reacts with oxygen to produce new substances like ash, carbon dioxide, and water.
* Reactivity: The tendency of a substance to undergo chemical reactions with other substances (e.g., iron reacting with oxygen to form rust).
* Corrosion: The gradual destruction of a material by chemical reactions with its environment (e.g., the corrosion of metal exposed to air and water).
* Oxidation: The process of a substance combining with oxygen (e.g., the rusting of iron).
* Decomposition: The breakdown of a substance into simpler substances (e.g., the decomposition of hydrogen peroxide into water and oxygen).
Important Note:
* Physical properties, on the other hand, can be observed without changing the substance's chemical composition. Examples include color, density, melting point, and boiling point.
Let me know if you'd like more details about any of these properties!