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Chapter 3: Matter — Properties and Changes

Practice Test
  1.A form of matter that has a fixed shape and occupies a fixed volume is a _________.  
  a.   solid  
  b.   gas  
  c.   liquid  
  d.   plasma  
  2.A solution of solids is a(n)___________.  
  a.   heterogeneous mixture  
  b.   filtration  
  c.   pure metal  
  d.   alloy  
  3.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  
  4.Periods are ___________ on the periodic table.  
  a.   left to right diagonals  
  b.   right to left diagonals  
  c.   horizontal rows  
  d.   vertical columns  
  5.Fe2O3 is a(n) _____________.  
  a.   compound  
  b.   heterogeneous mixture  
  c.   element  
  d.   homogeneous mixture  
  6.Elements on the left side of the periodic table are _______.  
  a.   nonmetals  
  b.   metalloids  
  c.   compounds  
  d.   metals  
  7.Which of the following is a compound?  
  a.   steel  
  b.   neon  
  c.   water  
  d.   crude oil  
  8.A technique that uses the differences in boiling point to separate homogeneous mixtures is _________.  
  a.   chromatography  
  b.   crystallization  
  c.   distillation  
  d.   filtration  
  9.In the following chemical reaction, how do you classify hydrogen and oxygen?
2H2 + O22H2O
  a.   chemical properties  
  b.   products  
  c.   reactants  
  d.   physical changes  
  10.The statement, “Mass can neither be created nor destroyed” is the ____________.  
  a.   law of gravity  
  b.   law of multiple proportions  
  c.   law of conservation of energy  
  d.   law of conservation of mass  
  11.Matter that has a uniform and unchanging composition is a ___________.  
  a.   mixture  
  b.   solid  
  c.   vapor  
  d.   substance  
  12.A characteristic that can be observed or measured without changing the sample’s composition is ________________.  
  a.   a physical property  
  b.   a gaseous property  
  c.   a crystalline property  
  d.   chemical property  
  13.A vapor is a _________.  
  a.   gas  
  b.   solid  
  c.   liquid  
  d.   condensed state  
  14.How would you read the following chemical reaction?
2Cu + O2 → 2CuO
  a.   copper and oxygen yield copper(II) oxide  
  b.   copper yields oxygen and copper(II) oxide  
  c.   copper(II) oxide yields oxygen and copper  
  d.   oxygen yields copper and copper(II) oxide  
  15.Which of the following is not a chemical property?  
  a.   burning a piece of wood  
  b.   rusting of iron  
  c.   placing iron in hydrochloric acid and producing hydrogen gas  
  d.   freezing of water  
  16.A technique that uses a porous barrier to separate heterogeneous mixtures is _______.  
  a.   crystallization  
  b.   distillation  
  c.   chromatography  
  d.   filtration  
  17.Which of the following is a pure substance?  
  a.   gun powder  
  b.   sugar water  
  c.   soda  
  d.   steam  
  18.Which of the following is a heterogeneous mixture?  
  a.   samples of argon and iron in the same container  
  b.   sugar  
  c.   sugar in water  
  d.   samples of nitrogen and oxygen in the same container  
  19.Properties that are dependent on the amount of substance present are ________.  
  a.   extensive properties  
  b.   intensive properties  
  c.   external properties  
  d.   chemical properties  
  20.Which of the following is not a state of matter?  
  a.   solid  
  b.   gas  
  c.   density  
  d.   liquid  

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