Chemical property:

Chemical property:

Physical Change: Any change which alter a substance without changing its composition is know as a physical change. Ex: Cutting a sheet of paper. Breaking a glass. Cutting a copper wire. Melting & boiling. Chemical Change: When one or more substances change into new substances showing different properties (a chemical reaction).

*Formation of a gas. *Change in color. Formation of a solid (precipitate). Change in odor. Physical Properties: Color State at 25oC (solid, liquid, or gas) Melting point. Boiling point. Density. Conductivity (heat & electricity). Chemical properties:

Is the ability of a substance to combine with or change into one or more other substances. Ex: Form green powder when in contact with moist air. Form deep blue solution when in contact with ammonia. Release a gas when in contact with hydrochloric acid. PracticeDecide Whether Each of the Observations About Table Salt Is a Physical or Chemical Property

Salt is a white, granular solid. physical. Salt melts at 801 C. physical. Salt is stable at room temperature, it does not decompose. chemical. 36 g of salt will dissolve in 100 g of water. physical. Salt solutions and molten salt conduct electricity.

physical. When a clear, colorless solution of silver nitrate is added to a salt solution, a white solid forms. chemical. When electricity is passed through molten salt, a gray metal forms at one terminal and a yellow-green gas at the other. chemical. 5 Extensive Property Intensive Property

Depends on the amount of matter in a sample. Ex: mass & volume (It can be changed). Depends on the type of matter in a sample. Ex: Color, melting point. boiling point, density. (It can not be changed).

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