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Chapter 3: Matter — Properties and Changes

Practice Test
  1.What type of property is observed when milk sours?  
  a.   an intensive property  
  b.   a physical property  
  c.   an extensive property  
  d.   a chemical property  
  2.Elements on the left side of the periodic table are _______.  
  a.   metals  
  b.   metalloids  
  c.   nonmetals  
  d.   compounds  
  3.Which of the following is not a chemical property?  
  a.   freezing of water  
  b.   burning a piece of wood  
  c.   rusting of iron  
  d.   placing iron in hydrochloric acid and producing hydrogen gas  
  4.A material that cannot be broken down further by chemical means is a(n) ________.  
  a.   element  
  b.   compound  
  c.   substance  
  d.   mixture  
  5.Which of the following is a pure substance?  
  a.   gun powder  
  b.   sugar water  
  c.   soda  
  d.   steam  
  6.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  
  7.A characteristic that can be observed or measured without changing the sample’s composition is ________________.  
  a.   a crystalline property  
  b.   chemical property  
  c.   a gaseous property  
  d.   a physical property  
  8.Seawater is not a substance because __________.  
  a.   it is salty  
  b.   it has hydrogen as part of its composition  
  c.   its composition may be different from sample to sample  
  d.   it is a liquid  
  9.How would you read the following chemical reaction?
2Cu + O2 → 2CuO
  a.   copper(II) oxide yields oxygen and copper  
  b.   copper and oxygen yield copper(II) oxide  
  c.   oxygen yields copper and copper(II) oxide  
  d.   copper yields oxygen and copper(II) oxide  
  10.Periods are ___________ on the periodic table.  
  a.   right to left diagonals  
  b.   vertical columns  
  c.   horizontal rows  
  d.   left to right diagonals  
  11.When one substance changes identity, it exhibits a(n) __________.  
  a.   chemical property  
  b.   physical property  
  c.   extensive property  
  d.   intensive property  
  12.Which of the following is a compound?  
  a.   crude oil  
  b.   neon  
  c.   water  
  d.   steel  
  13.Properties that are dependent on the amount of substance present are ________.  
  a.   external properties  
  b.   extensive properties  
  c.   chemical properties  
  d.   intensive properties  
  14.A vapor is a _________.  
  a.   condensed state  
  b.   gas  
  c.   liquid  
  d.   solid  
  15.How can you tell when the following reaction is balanced?
2Cu + O2 → 2CuO
  a.   mass of reactants = volume of products  
  b.   volume of reactants = mass of products  
  c.   mass of the reactants = mass of products  
  d.   volume of reactants = volume of products  
  16.A form of matter that has a fixed shape and occupies a fixed volume is a _________.  
  a.   solid  
  b.   plasma  
  c.   gas  
  d.   liquid  
  17.A solution of solids is a(n)___________.  
  a.   filtration  
  b.   pure metal  
  c.   heterogeneous mixture  
  d.   alloy  
  18.A technique that uses the differences in boiling point to separate homogeneous mixtures is _________.  
  a.   crystallization  
  b.   filtration  
  c.   distillation  
  d.   chromatography  
  19.Fe2O3 is a(n) _____________.  
  a.   compound  
  b.   element  
  c.   heterogeneous mixture  
  d.   homogeneous mixture  
  20.Which of the following is not a state of matter?  
  a.   liquid  
  b.   density  
  c.   solid  
  d.   gas  

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