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Chapter 3: Matter — Properties and Changes

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

 
   
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