Section C Review Pg.153-179

37 Questions | Total Attempts: 130
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Mass Quizzes & Trivia

Review of Section C Law of Conservation of Matter.

Questions and Answers
  • 1. 
    What is the molar mass of Carbon?
    • A. 

      6 g/mol

    • B. 

      12.01 g/mol

    • C. 

      19.00 g/mol

    • D. 

      1.01 g/mol

  • 2. 
    What is the molar mass of CH4 (methane)?
    • A. 

      12.01 g/mol

    • B. 

      13.02 g/mol

    • C. 

      16.05 g/mol

    • D. 

      32.10 g/mol

  • 3. 
    What is the molar mass of (NH4)2CO3 (Ammonium carbonate)?
    • A. 

      96.11 g/mol

    • B. 

      82.10 g/mol

    • C. 

      106.11 g/mol

    • D. 

      43.01 g/mol

  • 4. 
    What is the molecular mass of Cu3(PO4)2?
    • A. 

      253.49 g/mol

    • B. 

      380.59 g/mol

    • C. 

      110.22 g/mol

    • D. 

      348.59 g/mol

  • 5. 
    What is the molecular mass of Aluminum nitrate Al(NO3)3 from this equation: 2Al(s)   + 3Fe(NO3)2(aq)   à 3Fe(s)  + 2Al(NO3)3(aq)  
    • A. 

      213.01 g/mol

    • B. 

      335.98 g/mol

    • C. 

      56.99 g/mol

    • D. 

      141.01 g/mol

  • 6. 
    What coefficients will balance the following equation H2 + O2 --->  H2O
    • A. 

      2,2,1

    • B. 

      2,1,2

    • C. 

      4,1,2

    • D. 

      2,2,2

  • 7. 
    What coefficients will balance the following equation Al  + O2  --> Al2O3
    • A. 

      1,3,2

    • B. 

      4,3,2

    • C. 

      2,2,2

    • D. 

      2,1,3

  • 8. 
    What coefficients will balance the following equation AgNO3  +  NaCl  ---->  AgCl   +   NaNO3                       
    • A. 

      2,2,2,1

    • B. 

      1,1,1,1

    • C. 

      1,2,1,2

    • D. 

      2,1,2,1

  • 9. 
    What coefficients will balance the following equation K   +   H2O ----->    KOH   +   H2                     
    • A. 

      1,1,1,1

    • B. 

      2,2,2,1

    • C. 

      2,1,2,1

    • D. 

      1,2,1,2

  • 10. 
    What coefficients will balance the following equation Hg  +  O2  ---->  HgO                                      
    • A. 

      1,1,1

    • B. 

      2,2,1

    • C. 

      2,1,2

    • D. 

      1,2,2

  • 11. 
                   A balanced chemical equation shows the proportions of reactants and products necessary for
    • A. 

      The reaction to occur

    • B. 

      Mass to be conserved.

    • C. 

      Energy use to be minimized.

    • D. 

      Electrolysis to occur.

  • 12. 
                   A chemical equation is balanced by changing or adding
    • A. 

      Chemical symbols

    • B. 

      Subscripts

    • C. 

      Coefficients

    • D. 

      Reactants

  • 13. 
    What happens in a chemical reaction?
    • A. 

      Atoms are destroyed

    • B. 

      Atoms are created

    • C. 

      Atoms are rearranged

    • D. 

      Atoms are heated or cooled

  • 14. 
     A substance that undergoes a change in a chemical reaction is
    • A. 

      A product

    • B. 

      A chemical

    • C. 

      A reactant

    • D. 

      An enzyme

  • 15. 
    What are the percent composition for SF2?
    • A. 

      55 % Sulfur and 45% Fluorine

    • B. 

      45.76% Sulfur and 54.39 % Fluorine

    • C. 

      33% Sulfur and 67% Fluorine

    • D. 

      49.2 % Sulfur and 50.8 % Fluorine

  • 16. 
    What is the percent composition of Ethyne? C2H2?
    • A. 

      92.31% Carbon and 7.76% Hydrogen

    • B. 

      82% Carbon and 18% Hydrogen

    • C. 

      82.7% Carbon and 17.3 % Hydrogen

    • D. 

      90% Carbon and 14 % Hydrogen

  • 17. 
    What is the percentage of Sulfur in SF2?
    • A. 

      32.06 % Sulfur

    • B. 

      25% Sulfur

    • C. 

      45.15 % Sulfur

    • D. 

      62.67 % Sulfur

  • 18. 
    What is the empirical formula for a compound that contains 1.67 mole Carbon and 5.01 Moles of Hydrogen
    • A. 

      CH

    • B. 

      CH2

    • C. 

      C2H3

    • D. 

      CH3

  • 19. 
    What is the empirical formula for a compound that contains 37.69% Na and 62.31 % Fluorine?
    • A. 

      NaF3

    • B. 

      Na2F

    • C. 

      NaF

    • D. 

      NaF2

  • 20. 
    What is the empirical formula for: 85.60% C and 14.40% H?
    • A. 

      C2H3

    • B. 

      CH2

    • C. 

      CH3

    • D. 

      C2H4

  • 21. 
    What does the Law of Conservation of Matter refer to?
    • A. 

      Matter can not be created or destroyed.

    • B. 

      Matter can be created but can not be destroyed.

    • C. 

      Matter can be destroyed but not created.

  • 22. 
    What is Matter?
  • 23. 
    What side of the equation are the reactants on?
    • A. 

      Right

    • B. 

      Left

    • C. 

      Middle

    • D. 

      Both.

  • 24. 
    What are the reactants in the following equation? H2 + O → H2O 
    • A. 

      Hydrogen

    • B. 

      Oxygen

    • C. 

      Water

    • D. 

      Hydrogen and Oxygen

  • 25. 
    How many atoms of N are in the following molecule? NH3
    • A. 

      1

    • B. 

      2

    • C. 

      3

    • D. 

      0

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