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Chapter 3: Matter — Properties and Changes

Practice Test
      
  1.Which of the following is not a state of matter?  
  a.   liquid  
  b.   solid  
  c.   density  
  d.   gas  
  Hint    
      
  2.Properties that are dependent on the amount of substance present are ________.  
  a.   intensive properties  
  b.   external properties  
  c.   chemical properties  
  d.   extensive properties  
  Hint    
      
  3.When one substance changes identity, it exhibits a(n) __________.  
  a.   chemical property  
  b.   physical property  
  c.   extensive property  
  d.   intensive property  
  Hint    
      
  4.Which of the following is a compound?  
  a.   crude oil  
  b.   neon  
  c.   steel  
  d.   water  
  Hint    
      
  5.A characteristic that can be observed or measured without changing the sample’s composition is ________________.  
  a.   a physical property  
  b.   chemical property  
  c.   a gaseous property  
  d.   a crystalline property  
  Hint    
      
  6.A technique that uses the differences in boiling point to separate homogeneous mixtures is _________.  
  a.   distillation  
  b.   filtration  
  c.   crystallization  
  d.   chromatography  
  Hint    
      
  7.Which of the following is a pure substance?  
  a.   sugar water  
  b.   soda  
  c.   gun powder  
  d.   steam  
  Hint    
      
  8.Fe2O3 is a(n) _____________.  
  a.   heterogeneous mixture  
  b.   compound  
  c.   homogeneous mixture  
  d.   element  
  Hint    
      
  9.How would you read the following chemical reaction?
2Cu + O2 → 2CuO
 
  a.   copper(II) oxide yields oxygen and copper  
  b.   oxygen yields copper and copper(II) oxide  
  c.   copper yields oxygen and copper(II) oxide  
  d.   copper and oxygen yield copper(II) oxide  
  Hint    
      
  10.How can you tell when the following reaction is balanced?
2Cu + O2 → 2CuO
 
  a.   mass of reactants = volume of products  
  b.   volume of reactants = volume of products  
  c.   volume of reactants = mass of products  
  d.   mass of the reactants = mass of products  
  Hint    
      
  11.Seawater is not a substance because __________.  
  a.   it has hydrogen as part of its composition  
  b.   its composition may be different from sample to sample  
  c.   it is salty  
  d.   it is a liquid  
  Hint    
      
  12.A material that cannot be broken down further by chemical means is a(n) ________.  
  a.   mixture  
  b.   substance  
  c.   element  
  d.   compound  
  Hint    
      
  13.A solution of solids is a(n)___________.  
  a.   heterogeneous mixture  
  b.   pure metal  
  c.   filtration  
  d.   alloy  
  Hint    
      
  14.What type of property is observed when milk sours?  
  a.   a physical property  
  b.   a chemical property  
  c.   an extensive property  
  d.   an intensive property  
  Hint    
      
  15.Periods are ___________ on the periodic table.  
  a.   left to right diagonals  
  b.   horizontal rows  
  c.   right to left diagonals  
  d.   vertical columns  
  Hint    
      
  16.Elements on the left side of the periodic table are _______.  
  a.   compounds  
  b.   metalloids  
  c.   nonmetals  
  d.   metals  
  Hint    
      
  17.Matter that has a uniform and unchanging composition is a ___________.  
  a.   mixture  
  b.   substance  
  c.   solid  
  d.   vapor  
  Hint    
      
  18.The statement, “Mass can neither be created nor destroyed” is the ____________.  
  a.   law of conservation of mass  
  b.   law of gravity  
  c.   law of multiple proportions  
  d.   law of conservation of energy  
  Hint    
      
  19.What is the percent by mass of the components of water?  
  a.   67% H, 33% O b.   89% H, 11% O  
  c.   33% H, 67% O d.   11% H, 89% O  
  Hint    
      
  20.In the following chemical reaction, how do you classify hydrogen and oxygen?
2H2 + O22H2O
 
  a.   chemical properties  
  b.   physical changes  
  c.   reactants  
  d.   products  
  Hint    

 
   
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