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5 Written questions

5 Matching questions

  1. proton
  2. ion
  3. neutron
  4. ionic bond
  5. molecule
  1. a positively or negatively charged atom
  2. b neutral particle of an atom
  3. c positively charged particle of an atom
  4. d smallest unit of a compound
  5. e Formed when one or more electrons are transferred from one atom to another

5 Multiple choice questions

  1. pure substance consisting entirely of one type of atom
  2. substance formed by the chemical comination of two or more compounds in definite proportion
  3. forms when electrons are shared between atoms
  4. an attraction between molecules of the same substance
  5. solution with a higher concentration of hydrogen ions than water

5 True/False questions

  1. electronneutral particle of an atom


  2. buffera weak acid or weak base that prevents sudden changes in pH


  3. solutemixture where all components are even distributed


  4. solutionmixture where all components are even distributed


  5. van der waals forceforce of attraction between large molecules