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5 Written questions

5 Matching questions

  1. law of conservation of energy
  2. atom
  3. compound
  4. heat
  5. potential energy
  1. a a substance formed by the chemical combination of two or more elements in definite proportions
  2. b the total amount of kinetic energy due to molecular motion in a body of matter
  3. c smallest particle of an element
  4. d energy stored due to an object's position or arrangement
  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. properties of pure substances that can be measured and expressed numerically; fp, mp, d, etc.
  2. amount of energy needed to raise the temperature of 1 gram of water by 1 degree Celsius
  3. A combination of two or more substances that are not chemically combined
  4. a change that produces matter with a different composition than the original matter
  5. the SI unit of energy

5 True/False questions

  1. chemical propertiesa quality or condition of a substance that can be observed or measured without changing the substance's composition


  2. matterany substance; has mass and volume


  3. elementa pure substance made of only one kind of atom


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


  5. heat of vaporizationthe amount of energy required to change 1 g of a solid to a liquid


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