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5 Written questions

5 Matching questions

  1. law of conservation of energy
  2. matter
  3. heterogeneous
  4. heat of vaporization
  5. calorimeter
  1. a the amount of heat energy required to convert one gram of a substance from a liquid to a gas
  2. b any substance; has mass and volume
  3. c the law that states that energy cannot be created or destroyed but can be changed from one form to another
  4. d a device used to measure the heat absorbed or released in a chemical or physical change
  5. e not uniform throughout

5 Multiple choice questions

  1. a reaction that releases energy in the form of heat
  2. a substance formed by the chemical combination of two or more elements in definite proportions
  3. properties of pure substances that can be measured and expressed numerically; fp, mp, d, etc.
  4. the study of matter, the changes it undergoes and the energy required to change matter
  5. the amount of mass in a given volume

5 True/False questions

  1. endothermic reactiona reaction that releases energy in the form of heat

          

  2. energythe amount of mass in a given volume

          

  3. joulethe SI unit of energy

          

  4. chemical propertiescharacteristic that cannot be observed without altering the substance

          

  5. caloriea device used to measure the heat absorbed or released in a chemical or physical change