francesmirabilecook francesmirabilecook
  • 23-10-2018
  • Chemistry
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what is the definition of physical and chemical changes?

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Astute
Astute Astute
  • 23-10-2018

Physical change, a change that occurs physically, and can also be seen physically. But chemically, it's a change that occurs within the chemical, and most likely not be seen within the eyes, but, has a different charater afterward.

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violet1507
violet1507 violet1507
  • 23-10-2018
A physical change in a substance doesn't change what the substance is. In a chemical change where there is a chemical reaction, a new substance is formed and energy is either given off or absorbed. For example, if a piece of paper is cut up into small pieces it still is paper.
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