Selasa, 13 November 2012

The definition of a chemical change

The definition of a chemical change. A chemical change is a change in a substance that causes a new type of matter, and chemical composition of the substance originally were. Characteristics of chemical change is a substance that is formed can not be restored to its original form of a substance, such as sugar heated and burnt paper.

 
Conditions that affect the chemical changes such as temperature, pressure, medium, and light electric current. In a chemical change is always followed by a change of energy, energy can be heat, electricity, or light.

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