The properties of a substance refers to the characteristics of each type can indicate the type of substance? The properties of the substance can be classified into 2 categories:1. physical properties or physical properties Physical properties can have with the naked eye or the external appearance and the use of simple tools, observations. Mainly for external changes.2. chemical properties refer to properties that are associated with an element and change the chemical or chemical reaction will require new substances that have different properties from the original substance occur regularly, and in effect, to change the physical properties of the substance.
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