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Chapter 3: Matter — Properties and Changes

Practice Test
  1.Which of the following is not a chemical property?  
  a.   placing iron in hydrochloric acid and producing hydrogen gas  
  b.   burning a piece of wood  
  c.   rusting of iron  
  d.   freezing of water  
  2.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  
  3.The statement, “Mass can neither be created nor destroyed” is the ____________.  
  a.   law of gravity  
  b.   law of conservation of energy  
  c.   law of multiple proportions  
  d.   law of conservation of mass  
  4.Elements on the left side of the periodic table are _______.  
  a.   metals  
  b.   compounds  
  c.   nonmetals  
  d.   metalloids  
  5.A material that cannot be broken down further by chemical means is a(n) ________.  
  a.   compound  
  b.   mixture  
  c.   element  
  d.   substance  
  6.What type of property is observed when milk sours?  
  a.   a physical property  
  b.   an extensive property  
  c.   an intensive property  
  d.   a chemical property  
  7.Properties that are dependent on the amount of substance present are ________.  
  a.   chemical properties  
  b.   extensive properties  
  c.   intensive properties  
  d.   external properties  
  8.Fe2O3 is a(n) _____________.  
  a.   compound  
  b.   homogeneous mixture  
  c.   element  
  d.   heterogeneous mixture  
  9.A vapor is a _________.  
  a.   solid  
  b.   liquid  
  c.   gas  
  d.   condensed state  
  10.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  
  11.A form of matter that has a fixed shape and occupies a fixed volume is a _________.  
  a.   liquid  
  b.   plasma  
  c.   gas  
  d.   solid  
  12.What is the percent by mass of the components of water?  
  a.   67% H, 33% O b.   11% H, 89% O  
  c.   89% H, 11% O d.   33% H, 67% O  
  13.Matter that has a uniform and unchanging composition is a ___________.  
  a.   vapor  
  b.   mixture  
  c.   substance  
  d.   solid  
  14.When one substance changes identity, it exhibits a(n) __________.  
  a.   intensive property  
  b.   physical property  
  c.   chemical property  
  d.   extensive property  
  15.A solution of solids is a(n)___________.  
  a.   pure metal  
  b.   filtration  
  c.   heterogeneous mixture  
  d.   alloy  
  16.Which of the following is a pure substance?  
  a.   soda  
  b.   gun powder  
  c.   steam  
  d.   sugar water  
  17.Which of the following is a heterogeneous mixture?  
  a.   sugar  
  b.   samples of argon and iron in the same container  
  c.   samples of nitrogen and oxygen in the same container  
  d.   sugar in water  
  18.Which of the following is not a state of matter?  
  a.   solid  
  b.   density  
  c.   gas  
  d.   liquid  
  19.A technique that uses a porous barrier to separate heterogeneous mixtures is _______.  
  a.   distillation  
  b.   filtration  
  c.   crystallization  
  d.   chromatography  
  20.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  

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