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5 Written questions

5 Multiple choice questions

  1. compounds that form hydrogen ions when dissolved in water
  2. compounds that reduce the concentration of hydrogen ions in a solution
  3. water molecules moving upward through a narrow tube
  4. a weak chemical bond attraction between polar molecules
  5. a substance made of joined atoms or 2 or more different elements

4 True/False questions

  1. elementgroup of atoms held together by a covalent bond


  2. polar moleculemolecules with an unequal distribuation of electrical charges


  3. solutiona mixture in which one or more subtances are evenly distributed in another substance


  4. moleculea pure substance made of only one kind of atom