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

Practice Test
      
  1.In a covalent bond, electrons are __________.  
  a.   shared  
  b.   gained  
  c.   lost  
  d.   destroyed  
  Hint    
      
  2.What is the difference between carbon monoxide and carbon dioxide?  
  a.   Carbon dioxide has two carbon atoms.  
  b.   Carbon monoxide has two carbon atoms.  
  c.   Carbon monoxide has only one oxygen atom.  
  d.   Carbon dioxide has only one oxygen atom.  
  Hint    
      
  3.When elements form bonds, it changes their __________ properties.  
  a.   chemical  
  b.   physical  
  c.   chemical and physical  
  d.   mass  
  Hint    
      
  4.Chemical compounds are __________.  
  a.   more stable than their individual elements  
  b.   always unstable  
  c.   less stable than their individual elements  
  d.   always stable  
  Hint    
      
  5.For an ion, the oxidation number is __________.  
  a.   zero  
  b.   the same as the charge on the ion  
  c.   always negative  
  d.   one less than the charge on the ion  
  Hint    
      
  6.How many electrons are shared in a double bond?  
  a.   two pairs  
  b.   two  
  c.   one pair  
  d.   one  
  Hint    
      
  7.Francium, which is in the same chemical family as sodium, will carry what type of charge?  
  a.   both  
  b.   negative  
  c.   positive  
  d.   neutral  
  Hint    
      
  8.Compounds that are hydrates contain what ingredient?  
  a.   chlorine  
  b.   nitrogen  
  c.   water  
  d.   hydrogen chloride  
  Hint    
      
  9.Why is potassium iodine added to table salt?  
  a.   Table salt causes high blood pressure.  
  b.   Iodine is an element essential for health.  
  c.   Iodine is in the formula for table salt.  
  d.   to add to the flavor of salt  
  Hint    
      
  10.A polyatomic ion is another name for a __________ ion.  
  a.   neutral  
  b.   negative  
  c.   positive  
  d.   complex  
  Hint    
      
  11.When an atom's outer energy levels are not filled completely, the atom __________.  
  a.   is a noble gas  
  b.   is very stable  
  c.   can gain, lose, or share electrons  
  d.   cannot form a compound  
  Hint    
      
  12.A complex ion is __________.  
  a.   only found in compounds  
  b.   an ion made from a large atom  
  c.   a single atom that has formed an ion  
  d.   an ion with more than one atom  
  Hint    
      
  13.The iodine ion I- carries what type of charge?  
  a.   neutral  
  b.   negative  
  c.   both  
  d.   positive  
  Hint    
      
  14.The atom that contains the fewest electrons is __________.  
  a.   hydrogen  
  b.   helium  
  c.   water  
  d.   oxygen  
  Hint    
      
  15.NaCl is the chemical formula for what?  
  a.   sodium chloride  
  b.   chlorine gas  
  c.   water  
  d.   sodium metal  
  Hint    
      
  16.A binary compound made with phosphorus will end with the word __________.  
  a.   phosphate  
  b.   phosphide  
  c.   phosphorus  
  d.   phosphite  
  Hint    
      
  17.In sodium chloride, which atom loses an electron?  
  a.   neither  
  b.   sodium  
  c.   chloride  
  d.   salt  
  Hint    
      
  18.Is a molecule of hydrogen chloride (HCl) polar or nonpolar?  
  a.   both  
  b.   neither  
  c.   nonpolar  
  d.   polar  
  Hint    
      
  19.What kind of charge does an ionic compound carry?  
  a.   negative  
  b.   positive  
  c.   unknown  
  d.   neutral  
  Hint    
      
  20.Binary compounds are composed of __________ atoms.  
  a.   four  
  b.   two  
  c.   many  
  d.   one  
  Hint    

 
   
McGraw-Hill / Glencoe
The McGraw-Hill Companies