What is the coefficient of carbon dioxide after balancing the following equation?             __Cr2(CO3)3(s)  __Cr2O3(s) + __CO2(g)   A) 1 B) 2 C) 3 D) 4 E) none of the above

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ChapterU6: Showtime: Reversible Reactions And Chemical Equilibrium
SectionU6.2: How Backward: Reversible Reactions
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 Which of the statements below best describes the following reaction?

            Na2CO3(s)  Ni(NO2)2(s) + O2(g)

 

  1. A) Nickel(II) nitrate decomposes with heat.
  2. B) Nickel(II) nitrate decomposes to nickel(II) nitrite and oxygen.
  3. C) Nickel(II) nitrate decomposes to nickel(II) nitrite and oxygen gas.
  4. D) Nickel(II) nitrate is heated to give nickel(II) nitrite and oxygen.
  5. E) Solid nickel(II) nitrate is heated to give solid nickel(II) nitrite and

     oxygen gas.

 What is the coefficient of carbon dioxide after balancing the following equation?

            __Cr2(CO3)3(s)  __Cr2O3(s) + __CO2(g)

 

  1. A) 1
  2. B) 2
  3. C) 3
  4. D) 4
  5. E) none of the above 
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