Do You Know About Balancing Equations?

15 Questions | Total Attempts: 62

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Balancing Equation Quizzes & Trivia

Here you will prove your ability to recognize parts of an equation, whether or not it is balanced and balance it.


Questions and Answers
  • 1. 
    Cu + HNO3 Cu(NO3)2 + NO + H2O Balance this reaction. What are the coefficients for each reactant/product in the reaction?
    • A. 

      3, 4, 6, 5

    • B. 

      3, 8, 3, 2, 4

    • C. 

      2, 4, 4, 7, 2

    • D. 

      1, 5, 4, 7, 2

    • E. 

      6,2 , 2,4

    • F. 

      None of the above

  • 2. 
    C3H8(g) + O2(g) ----> CO2(g) + H2O(g) Balance this reaction. What are the coefficients for each reactant/product in the reaction?
    • A. 

      1,4, 3, 4

    • B. 

      3, 5, 4, 1

    • C. 

      3, 3, 4, 2

    • D. 

      1,3, 5, 2

    • E. 

      1, 5, 3 , 4

  • 3. 
    Ca(OH)2 + HCl ---> CaCl2+ H2O Balance this reaction. What are the coefficients for each reactant/product in the reaction?
    • A. 

      1, 2, 1, 2

    • B. 

      2, 2, 1, 3

    • C. 

      1, 3, 4, 1

    • D. 

      3, 3, 4, 1

    • E. 

      2, 3, 1, 2

  • 4. 
    Cu + HNO3 Cu(NO3)2 + NO + H2O Which of the following is a reactant?
    • A. 

      Cu(NO3)2

    • B. 

      NO

    • C. 

      H2O

    • D. 

      HNO3

    • E. 

      None of these

  • 5. 
    Al + O2  -->  Al2O3 What are the coefficients that would balance this reaction?
    • A. 

      2, 3, 3

    • B. 

      3, 4, 4

    • C. 

      4, 3, 2

    • D. 

      2, 4, 3

    • E. 

      1, 3 ,2

  • 6. 
    What law says we need to have balanced chemical equations?
    • A. 

      The law of constant attention

    • B. 

      The law of constant comments

    • C. 

      The second law of thermodynamics

    • D. 

      The law of conservation of mass

    • E. 

      The rule of law

  • 7. 
    ______ CH­2O            +             ______ HCl ---->  ______ CH4O             +            ______ Cl2
    • A. 

      1 2 1 1

    • B. 

      2 1 1 1

    • C. 

      1 1 2 1

    • D. 

      1 1 1 2

  • 8. 
    ___ CH4 + ___O2 --> ___CO2 + ___H2O
    • A. 

      1 2 1 2

    • B. 

      2 1 2 1

    • C. 

      3 1 2 4

    • D. 

      1 2 3 4

    • E. 

      4 3 1 2

  • 9. 
    ____ NH3+ ____ H2SO4 à ____ (NH4)2SO4  Write the coeficients below with a comma and space separating each.
  • 10. 
    ____ Pb + ____ H3PO4 à ____ H2 + ____ Pb3(PO4)2   Write the coeficients below with a comma and space separating each.
  • 11. 
    Which is the balanced equation for silver nitrate added to chlorine gas making silver chloride and nitrogen gas and oxygen gas
    • A. 

      AgNO2 + Cl2 ---> AgCl2 + N + O2

    • B. 

      2AgNO2 + Cl2 ---> 2AgCl + N2 + 2O2

    • C. 

      2AgNO3 + Cl2 ---> 2AgCl + N2 + 3O2

    • D. 

      AgNO3 + Cl2 ---> AgCl2 + N + O2

  • 12. 
    Which is the balanced equation for hydrogen gas reacting with nitrogen gas producing ammonia?
    • A. 

      N2 + H2 ---> N2H2

    • B. 

      3H2 + N2 ---> 2NH3

    • C. 

      2H2 + 3N2 ---> 2N6H4

    • D. 

      2N2 + 3H2 ---> 2N2H3

  • 13. 
    Which is the balanced equation for magnesium added to copper(I) chloride yielding copper and magnesium chloride?
    • A. 

      Mg + 2CuCl ---> 2Cu + MgCl2

    • B. 

      Mg + CuCl ---> Cu + MgCl

    • C. 

      2Mg + 4CuCl ---> 4Cu + 2MgCl2

    • D. 

      Mg + CuCl2 ---> Cu + MgCl2

  • 14. 
    Look at this reaction and identify the products: Mg + CuCl ---> Cu + MgCl
    • A. 

      CuCl and Mg

    • B. 

      Cu and Mg

    • C. 

      Cu and MgCl

  • 15. 
    What do the subscripts in this molecule tell you? H2SO4
    • A. 

      That there are 2 sulfur atoms and 4 oxygen atoms

    • B. 

      That there are 2 hydrogen atoms and 4 oxygen atoms

    • C. 

      That there are 8 molecules of H2SO4

    • D. 

      That there are 2 hydrogen atoms and 4 sulfur atoms