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5 Written questions

5 Matching questions

  1. law of conservation of energy
  2. atom
  3. physical constant
  4. chemistry
  5. chemical change
  1. a smallest particle of an element
  2. b a change that produces matter with a different composition than the original matter
  3. c properties of pure substances that can be measured and expressed numerically; fp, mp, d, etc.
  4. d the study of matter, the changes it undergoes and the energy required to change matter
  5. e the law that states that energy cannot be created or destroyed but can be changed from one form to another

5 Multiple choice questions

  1. a substance formed by the chemical combination of two or more elements in definite proportions
  2. the amount of mass in a given volume
  3. energy stored due to an object's position or arrangement
  4. any part of a system with uniform composition and properties; a state
  5. the amount of energy required to change 1 g of a solid to a liquid

5 True/False questions

  1. joulethe SI unit of energy


  2. homogeneousnot uniform throughout


  3. heatA measure of force with which gravity pulls a body toward the center of the earth;


  4. calorieamount of energy needed to raise the temperature of 1 gram of water by 1 degree Celsius


  5. mixtureany substance; has mass and volume


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