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5 Written questions

5 Matching questions

  1. calorimeter
  2. compound
  3. heat of fusion
  4. energy
  5. kinetic energy
  1. a the amount of energy required to change 1 g of a solid to a liquid
  2. b a substance formed by the chemical combination of two or more elements in definite proportions
  3. c the energy an object has due to its motion
  4. d capacity to do work or cause change
  5. e a device used to measure the heat absorbed or released in a chemical or physical change

5 Multiple choice questions

  1. smallest particle of an element
  2. properties of pure substances that can be measured and expressed numerically; fp, mp, d, etc.
  3. a measure of the average kinetic energy of the particles in a sample of matter
  4. Mass is neither destroyed nor created during ordinary chemical reactions or physical changes
  5. the law that states that energy cannot be created or destroyed but can be changed from one form to another

5 True/False questions

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


  2. weightA measure of force with which gravity pulls a body toward the center of the earth;


  3. heat of vaporizationthe amount of heat energy required to convert one gram of a substance from a liquid to a gas


  4. potential energyenergy stored due to an object's position or arrangement


  5. physical changeone in which the form or appearance of matter changes, but not its composition


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