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5 Written questions

5 Matching questions

  1. heterogeneous
  2. weight
  3. calorimeter
  4. energy
  5. mixture
  1. a A combination of two or more substances that are not chemically combined
  2. b not uniform throughout
  3. c A measure of force with which gravity pulls a body toward the center of the earth;
  4. d a device used to measure the heat absorbed or released in a chemical or physical change
  5. e capacity to do work or cause change

5 Multiple choice questions

  1. the law that states that energy cannot be created or destroyed but can be changed from one form to another
  2. smallest particle of an element
  3. properties of pure substances that can be measured and expressed numerically; fp, mp, d, etc.
  4. any substance; has mass and volume
  5. the study of matter, the changes it undergoes and the energy required to change matter

5 True/False questions

  1. volumethe SI unit of energy


  2. endothermic reactionA reaction that ABSORBS energy in the form of heat


  3. massany part of a system with uniform composition and properties; a state


  4. kinetic energythe energy an object has due to its motion


  5. joulemeasure of space that matter takes up; mL, cm3


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