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Chapter 3: Matter — Properties and Changes

Practice Test
  1.Properties that are dependent on the amount of substance present are ________.  
  a.   intensive properties  
  b.   external properties  
  c.   extensive properties  
  d.   chemical properties  
  2.Elements on the left side of the periodic table are _______.  
  a.   compounds  
  b.   nonmetals  
  c.   metalloids  
  d.   metals  
  3.The statement, “Mass can neither be created nor destroyed” is the ____________.  
  a.   law of conservation of mass  
  b.   law of multiple proportions  
  c.   law of gravity  
  d.   law of conservation of energy  
  4.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  
  5.What type of property is observed when milk sours?  
  a.   an intensive property  
  b.   an extensive property  
  c.   a chemical property  
  d.   a physical property  
  6.Periods are ___________ on the periodic table.  
  a.   vertical columns  
  b.   horizontal rows  
  c.   left to right diagonals  
  d.   right to left diagonals  
  7.What is the percent by mass of the components of water?  
  a.   33% H, 67% O b.   67% H, 33% O  
  c.   89% H, 11% O d.   11% H, 89% O  
  8.A solution of solids is a(n)___________.  
  a.   heterogeneous mixture  
  b.   pure metal  
  c.   filtration  
  d.   alloy  
  9.A form of matter that has a fixed shape and occupies a fixed volume is a _________.  
  a.   solid  
  b.   plasma  
  c.   liquid  
  d.   gas  
  10.A material that cannot be broken down further by chemical means is a(n) ________.  
  a.   element  
  b.   substance  
  c.   compound  
  d.   mixture  
  11.Matter that has a uniform and unchanging composition is a ___________.  
  a.   mixture  
  b.   solid  
  c.   substance  
  d.   vapor  
  12.A vapor is a _________.  
  a.   solid  
  b.   gas  
  c.   condensed state  
  d.   liquid  
  13.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  
  14.In the following chemical reaction, how do you classify hydrogen and oxygen?
2H2 + O22H2O
  a.   physical changes  
  b.   reactants  
  c.   products  
  d.   chemical properties  
  15.When one substance changes identity, it exhibits a(n) __________.  
  a.   physical property  
  b.   chemical property  
  c.   intensive property  
  d.   extensive property  
  16.Which of the following is a compound?  
  a.   neon  
  b.   crude oil  
  c.   steel  
  d.   water  
  17.Which of the following is a pure substance?  
  a.   steam  
  b.   soda  
  c.   gun powder  
  d.   sugar water  
  18.Which of the following is not a state of matter?  
  a.   solid  
  b.   gas  
  c.   liquid  
  d.   density  
  19.A technique that uses a porous barrier to separate heterogeneous mixtures is _______.  
  a.   distillation  
  b.   chromatography  
  c.   crystallization  
  d.   filtration  
  20.A characteristic that can be observed or measured without changing the sample’s composition is ________________.  
  a.   chemical property  
  b.   a physical property  
  c.   a crystalline property  
  d.   a gaseous property  

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