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1. What happens to the particles of matter in physical change? chemical
change?
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2. Give three common examples of physical change and chemical change.
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3. What is the difference between a chemical change and a physical change?


Sagot :

Answer:

1.In physical changes no new materials are formed and the particles do not change apart from gaining or losing energy. ... Particles stay the same unless there is a chemical change whether the matter is solid, liquid or gas. Only their arrangement, energy and movement changes.

2.

  • Examples of chemical changes are burning, cooking, rusting, and rotting.
  • Examples of physical changes are boiling, melting, freezing, and shredding.

3.In a physical change the appearance or form of the matter changes but the kind of matter in the substance does not. However in a chemical change, the kind of matter changes and at least one new substance with new properties is formed. The distinction between physical and chemical change is not clear cut.

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