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5 Written questions

5 Matching questions

  1. nonpolar covalent bond
  2. energy
  3. atomic weight
  4. radioactive isotope
  5. polar covalent bond
  1. a two atoms are equally electronegative
  2. b one atom is more electronegative than another
  3. c ability to do work
  4. d mass of an atom
  5. e one in which the nucleus decays spontaneously, giving off particles and energy

5 Multiple choice questions

  1. substance that cannot be broken down to other substances by chemical reactions
  2. atoms that have more neutrons than other atoms of the same element and therefore weigh more
  3. starting materials
  4. outer electrons
  5. point at which reactions offset one another exactly, no effect on concentrations of reactants and products

5 True/False questions

  1. covalent bondone atom is more electronegative than another


  2. potential energyability to do work


  3. structural formularepresents both atoms and bonding


  4. molecular formulafurther abbreviated formula


  5. ionic bondnegatively charged ion