Chemical Property: the ability to form a new substance in a chemical reaction. Chemical properties can only be observed by combining substances and seeing what new substance (if any) is formed.

Examples:
•gasoline can burn (react with oxygen) to produce carbon dioxide and water
•fluorine can react with uranium to form the dense UF₆ gas
•lone nitrogen atoms will combine to form N₂ molecules
•CO₂ gas can combine with water molecules to form a weak acid
•metals react with acids, usually forming one or more gases and a salt
•at high temperatures, aluminum reacts with iron(III) oxide (rust) to form molten iron and a lot of heat
•solid sodium azide (NaN₃) rapidly decomposes to form sodium metal and nitrogen gas

<– Previous: Physical Properties   /   Next: Physical Changes –>