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of 32 available terms

5 Written Questions

5 Matching Questions

  1. physical constant
  2. compound
  3. heterogeneous
  4. heat of vaporization
  5. weight
  1. a A measure of force with which gravity pulls a body toward the center of the earth;
  2. b the amount of heat energy required to convert one gram of a substance from a liquid to a gas
  3. c a substance formed by the chemical combination of two or more elements in definite proportions
  4. d not uniform throughout
  5. e properties of pure substances that can be measured and expressed numerically; fp, mp, d, etc.

5 Multiple Choice Questions

  1. the amount of energy required to change 1 g of a solid to a liquid
  2. a quality or condition of a substance that can be observed or measured without changing the substance's composition
  3. the study of matter, the changes it undergoes and the energy required to change matter
  4. a measure of the average kinetic energy of the particles in a sample of matter
  5. any substance; has mass and volume

5 True/False Questions

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


  2. densitycapacity to do work or cause change


  3. law of conservation of massMass is neither destroyed nor created during ordinary chemical reactions or physical changes


  4. energycapacity to do work or cause change


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


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