Quizlet Chemical Building Blocks

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  1. 3 principal states of matter: solids, liquids, and gases.
  2. Boiling point: is the temperature at which a substance changes from a liquid to a gas.
  3. Characteristic properties: for a give substance never changes, they can be used to identify unknown matter.
  4. Chemical activity: is a characteristic property of a substance that indicates its ability to undergo a specific chemical change.
  5. Chemical changes: are when substances combine or break apart to form new substances.
  6. Compound: is a substance made of two or more elements that are chemically combined.
  7. Elements: are substances that cannot be broken down in to other substances by any physical or chemical means.
  8. Matter: can be classified into two general categories: mixture and pure substances.
  9. Matter: is anything that has mass and takes up space.
  10. Melting point: is the temperature at which a solid changes from a solid to a liquid.
  11. Physical changes: alter the form of a substance, but not its identity.
  12. Pure substances: is made of only one kind of matter and has definite properties.