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Chapter 3: Matter — Properties and Changes

Practice Test
  1.What type of property is observed when milk sours?  
  a.   a chemical property  
  b.   an extensive property  
  c.   a physical property  
  d.   an intensive property  
  2.When one substance changes identity, it exhibits a(n) __________.  
  a.   physical property  
  b.   intensive property  
  c.   chemical property  
  d.   extensive property  
  3.Matter that has a uniform and unchanging composition is a ___________.  
  a.   substance  
  b.   mixture  
  c.   solid  
  d.   vapor  
  4.Elements on the left side of the periodic table are _______.  
  a.   compounds  
  b.   nonmetals  
  c.   metalloids  
  d.   metals  
  5.Fe2O3 is a(n) _____________.  
  a.   element  
  b.   compound  
  c.   heterogeneous mixture  
  d.   homogeneous mixture  
  6.A solution of solids is a(n)___________.  
  a.   filtration  
  b.   pure metal  
  c.   alloy  
  d.   heterogeneous mixture  
  7.A material that cannot be broken down further by chemical means is a(n) ________.  
  a.   substance  
  b.   mixture  
  c.   element  
  d.   compound  
  8.How would you read the following chemical reaction?
2Cu + O2 → 2CuO
  a.   oxygen yields copper and copper(II) oxide  
  b.   copper yields oxygen and copper(II) oxide  
  c.   copper(II) oxide yields oxygen and copper  
  d.   copper and oxygen yield copper(II) oxide  
  9.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.   volume of reactants = volume of products  
  d.   mass of the reactants = mass of products  
  10.In the following chemical reaction, how do you classify hydrogen and oxygen?
2H2 + O22H2O
  a.   products  
  b.   physical changes  
  c.   chemical properties  
  d.   reactants  
  11.A characteristic that can be observed or measured without changing the sample’s composition is ________________.  
  a.   chemical property  
  b.   a gaseous property  
  c.   a crystalline property  
  d.   a physical property  
  12.A vapor is a _________.  
  a.   solid  
  b.   liquid  
  c.   condensed state  
  d.   gas  
  13.Which of the following is a compound?  
  a.   water  
  b.   crude oil  
  c.   neon  
  d.   steel  
  14.Periods are ___________ on the periodic table.  
  a.   right to left diagonals  
  b.   horizontal rows  
  c.   vertical columns  
  d.   left to right diagonals  
  15.Which of the following is not a state of matter?  
  a.   density  
  b.   liquid  
  c.   solid  
  d.   gas  
  16.Seawater is not a substance because __________.  
  a.   it is a liquid  
  b.   its composition may be different from sample to sample  
  c.   it has hydrogen as part of its composition  
  d.   it is salty  
  17.Which of the following is a pure substance?  
  a.   sugar water  
  b.   soda  
  c.   steam  
  d.   gun powder  
  18.Which of the following is a heterogeneous mixture?  
  a.   sugar in water  
  b.   samples of nitrogen and oxygen in the same container  
  c.   sugar  
  d.   samples of argon and iron in the same container  
  19.Properties that are dependent on the amount of substance present are ________.  
  a.   intensive properties  
  b.   external properties  
  c.   chemical properties  
  d.   extensive properties  
  20.A form of matter that has a fixed shape and occupies a fixed volume is a _________.  
  a.   plasma  
  b.   liquid  
  c.   solid  
  d.   gas  

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