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5 Written questions

5 Matching questions

  1. entropy
  2. graduated pipet
  3. concentrated
  4. insoluble
  5. heterogeneous mixture
  1. a (of a substance) not easily dissolved
  2. b a mixture in which different materials can be distinguished easily
  3. c of or relating to a solution whose dilution has been reduced
  4. d a measure of the disorder of a system
  5. e glass; common sizes are 10mL, 25mL; used to measure solution in volumes; less accurate than a volumetric pipet.

5 Multiple choice questions

  1. the energy released when one mole of an ionic crystalline compound is formed from gaseous ions
  2. a homogeneous mixture of two or more substances
  3. result of diffusion where there is continuous movement of particles but no overall change in concentration
  4. the strength of a solution
  5. a liquid substance capable of dissolving other substances

5 True/False questions

  1. saturatednot saturated

          

  2. homogeneous mixturea mixture in which substances are evenly distributed throughout the mixture

          

  3. percent compositionthe percent by mass of each element in a compound

          

  4. electrical conductivitya chemical formula showing the ratio of elements in a compound rather than the total number of atoms

          

  5. solute(of a substance) capable of being dissolved in some solvent (usually water)