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5 Written questions

5 Matching questions

  1. solute
  2. neutron
  3. molecule
  4. buffer
  5. nucleus
  1. a neutral particle of an atom
  2. b smallest unit of a compound
  3. c the substance that is dissolved
  4. d center of the atom containing protons and neutrons
  5. e a weak acid or weak base that prevents sudden changes in pH

5 Multiple choice questions

  1. force of attraction between large molecules
  2. atoms of the same element but with a different number of neutron
  3. solution with a higher concentration of hydrogen ions than water
  4. an attraction between molecules of different substances
  5. the substance in which the solute is dissolved

5 True/False questions

  1. covalent bondforms when electrons are shared between atoms

          

  2. cohesionan attraction between molecules of different substances

          

  3. compoundsubstance formed by the chemical comination of two or more compounds in definite proportion

          

  4. elementpure substance consisting entirely of one type of atom

          

  5. solutionmixture where all components are even distributed