Science Home Product Information Site Map Search Contact Us   Glencoe Online
Quizzes Quiz
Chemical Bonds

Practice Test
  1.How many electrons are shared in a double bond?  
  a.   one  
  b.   one pair  
  c.   two  
  d.   two pairs  
  2.When elements form bonds, it changes their __________ properties.  
  a.   chemical  
  b.   chemical and physical  
  c.   physical  
  d.   mass  
  3.For an ion, the oxidation number is __________.  
  a.   one less than the charge on the ion  
  b.   zero  
  c.   the same as the charge on the ion  
  d.   always negative  
  4.The atom that contains the fewest electrons is __________.  
  a.   water  
  b.   oxygen  
  c.   hydrogen  
  d.   helium  
  5.When an atom's outer energy levels are not filled completely, the atom __________.  
  a.   can gain, lose, or share electrons  
  b.   is a noble gas  
  c.   cannot form a compound  
  d.   is very stable  
  6.Is a molecule of hydrogen chloride (HCl) polar or nonpolar?  
  a.   nonpolar  
  b.   neither  
  c.   both  
  d.   polar  
  7.What kind of charge does an ionic compound carry?  
  a.   unknown  
  b.   negative  
  c.   neutral  
  d.   positive  
  8.A binary compound made with phosphorus will end with the word __________.  
  a.   phosphite  
  b.   phosphorus  
  c.   phosphide  
  d.   phosphate  
  9.NaCl is the chemical formula for what?  
  a.   sodium metal  
  b.   sodium chloride  
  c.   chlorine gas  
  d.   water  
  10.A polyatomic ion is another name for a __________ ion.  
  a.   positive  
  b.   neutral  
  c.   complex  
  d.   negative  
  11.Why is potassium iodine added to table salt?  
  a.   to add to the flavor of salt  
  b.   Table salt causes high blood pressure.  
  c.   Iodine is an element essential for health.  
  d.   Iodine is in the formula for table salt.  
  12.In a covalent bond, electrons are __________.  
  a.   destroyed  
  b.   shared  
  c.   gained  
  d.   lost  
  13.A complex ion is __________.  
  a.   a single atom that has formed an ion  
  b.   an ion with more than one atom  
  c.   only found in compounds  
  d.   an ion made from a large atom  
  14.Chemical compounds are __________.  
  a.   always stable  
  b.   less stable than their individual elements  
  c.   more stable than their individual elements  
  d.   always unstable  
  15.What is the difference between carbon monoxide and carbon dioxide?  
  a.   Carbon dioxide has only one oxygen atom.  
  b.   Carbon dioxide has two carbon atoms.  
  c.   Carbon monoxide has two carbon atoms.  
  d.   Carbon monoxide has only one oxygen atom.  
  16.In general, noble gases react with __________.  
  a.   water  
  b.   metals  
  c.   nothing  
  d.   other noble gases  
  17.Francium, which is in the same chemical family as sodium, will carry what type of charge?  
  a.   neutral  
  b.   positive  
  c.   both  
  d.   negative  
  18.In sodium chloride, which atom loses an electron?  
  a.   salt  
  b.   sodium  
  c.   chloride  
  d.   neither  
  19.The iodine ion I- carries what type of charge?  
  a.   neutral  
  b.   positive  
  c.   both  
  d.   negative  
  20.Binary compounds are composed of __________ atoms.  
  a.   many  
  b.   two  
  c.   one  
  d.   four  

McGraw-Hill / Glencoe
The McGraw-Hill Companies