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5 Written questions

5 Matching questions

  1. chemical change
  2. law of conservation of mass
  3. liquid
  4. elements
  5. atoms
  1. a the smallest unit of matter that has the characteristics of an element; consists of three main types of subatomic particles: protons neutrons and electrons.
  2. b a fundamental principle of classical physics that matter cannot be created or destroyed in an isolated system
  3. c a molecule composed of one kind of atom; cannot be broken into simpler units by chemical reactions.
  4. d is a substance that takes a shape of it contaner.
  5. e a change that produces matter with a different composition than the original matter

5 Multiple choice questions

  1. on the left
  2. the amount per unit size
  3. the state of matter distinguished from the solid and liquid states by: relatively low density and viscosity
  4. substances formed by the joining of elements through chemical bonding. every molecule of a compound is the same.
  5. that which has mass and occupies space.(everything in the world has this)

5 True/False questions

  1. volumephysical objects consisting of a number of pages bound together


  2. temperaturea measure of how hot or cold something is


  3. periodic tableon the right


  4. physical changea change from one state (solid or liquid or gas) to another without a change in chemical composition


  5. massany of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water


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