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Chapter 3: Matter — Properties and Changes

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

 
   
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