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Chapter 3: Matter — Properties and Changes

Practice Test
  1.Elements on the left side of the periodic table are _______.  
  a.   metals  
  b.   nonmetals  
  c.   metalloids  
  d.   compounds  
  2.Which of the following is a heterogeneous mixture?  
  a.   sugar  
  b.   sugar in water  
  c.   samples of argon and iron in the same container  
  d.   samples of nitrogen and oxygen in the same container  
  3.A vapor is a _________.  
  a.   solid  
  b.   gas  
  c.   condensed state  
  d.   liquid  
  4.Which of the following is a compound?  
  a.   water  
  b.   neon  
  c.   crude oil  
  d.   steel  
  5.A material that cannot be broken down further by chemical means is a(n) ________.  
  a.   mixture  
  b.   substance  
  c.   element  
  d.   compound  
  6.A solution of solids is a(n)___________.  
  a.   alloy  
  b.   filtration  
  c.   heterogeneous mixture  
  d.   pure metal  
  7.What type of property is observed when milk sours?  
  a.   an intensive property  
  b.   a physical property  
  c.   a chemical property  
  d.   an extensive property  
  8.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  
  9.Periods are ___________ on the periodic table.  
  a.   left to right diagonals  
  b.   vertical columns  
  c.   horizontal rows  
  d.   right to left diagonals  
  10.What is the percent by mass of the components of water?  
  a.   89% H, 11% O b.   11% H, 89% O  
  c.   33% H, 67% O d.   67% H, 33% O  
  11.In the following chemical reaction, how do you classify hydrogen and oxygen?
2H2 + O22H2O
  a.   products  
  b.   physical changes  
  c.   reactants  
  d.   chemical properties  
  12.Properties that are dependent on the amount of substance present are ________.  
  a.   extensive properties  
  b.   chemical properties  
  c.   external properties  
  d.   intensive properties  
  13.Fe2O3 is a(n) _____________.  
  a.   compound  
  b.   heterogeneous mixture  
  c.   element  
  d.   homogeneous mixture  
  14.How would you read the following chemical reaction?
2Cu + O2 → 2CuO
  a.   copper yields oxygen and copper(II) oxide  
  b.   copper and oxygen yield copper(II) oxide  
  c.   copper(II) oxide yields oxygen and copper  
  d.   oxygen yields copper and copper(II) oxide  
  15.When one substance changes identity, it exhibits a(n) __________.  
  a.   physical property  
  b.   intensive property  
  c.   extensive property  
  d.   chemical property  
  16.How can you tell when the following reaction is balanced?
2Cu + O2 → 2CuO
  a.   volume of reactants = mass of products  
  b.   mass of reactants = volume of products  
  c.   volume of reactants = volume of products  
  d.   mass of the reactants = mass of products  
  17.The statement, “Mass can neither be created nor destroyed” is the ____________.  
  a.   law of gravity  
  b.   law of conservation of mass  
  c.   law of multiple proportions  
  d.   law of conservation of energy  
  18.Which of the following is a pure substance?  
  a.   steam  
  b.   sugar water  
  c.   gun powder  
  d.   soda  
  19.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  
  20.Which of the following is not a state of matter?  
  a.   liquid  
  b.   gas  
  c.   density  
  d.   solid  

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