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Homework

Homework. Due at the end of the period: Problems 4-9 on pages 642-643 Homework: Problems 10-11 on page 643. Homework. Determine the oxidation number of the boldface element in the following formulas for compounds. a. Na Cl O 4. Homework.

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Homework

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  1. Homework Due at the end of the period: Problems 4-9 on pages 642-643 Homework: Problems 10-11 on page 643

  2. Homework • Determine the oxidation number of the boldface element in the following formulas for compounds. • a. NaClO4

  3. Homework • 4. Determine the oxidation number of the boldface element in the following formulas for compounds. • b. AlPO4

  4. Homework • 4. Determine the oxidation number of the boldface element in the following formulas for compounds. • c. HNO2

  5. Homework 5. Determine the oxidation number of the boldface element in the following formulas for ions. a. NH4+

  6. Homework 5. Determine the oxidation number of the boldface element in the following formulas for ions. b. AsO43-

  7. Homework 5. Determine the oxidation number of the boldface element in the following formulas for ions. c. CrO42-

  8. Homework • Describe the process of oxidation and reduction.

  9. Homework • Describe the process of oxidation and reduction. • LEOsays GER

  10. Homework • Explain the roles of oxidizing agents and reducing agents in a redox reaction. How is each changed in the reaction? • Oxidizing agents take electrons • Reducing agents give electrons • Oxidizing agents are reduced • Reducing agents are oxidized.

  11. Homework 8. Determine the oxidation number of the boldface element in the following formulas for compounds. a. Sb2O5

  12. Homework 8. Determine the oxidation number of the boldface element in the following formulas for compounds. b. HNO3

  13. Homework 8. Determine the oxidation number of the boldface element in the following formulas for compounds. c. CaN2

  14. Homework 8. Determine the oxidation number of the boldface element in the following formulas for compounds. d. CuWO4

  15. Homework 9. Determine the oxidation number of the boldface element in these ions. a. IO4-

  16. Homework 9. Determine the oxidation number of the boldface element in these ions. b. MnO4-

  17. Homework 9. Determine the oxidation number of the boldface element in these ions. c. B4O72-

  18. Homework 9. Determine the oxidation number of the boldface element in these ions. d. NH2-

  19. Homework • Write the equation for the reaction of iron metal with hydrobromic acid to form iron(III) bromide and hydrogen gas. Determine which element is reduced and which is oxidized in this reaction.

  20. Homework • Write the equation for the reaction of iron metal with hydrobromic acid to form iron(III) bromide and hydrogen gas. Determine which element is reduced and which is oxidized in this reaction. • Fe + HBr → Fe(III)Br3 + H2

  21. Homework • Write the equation for the reaction of iron metal with hydrobromic acid to form iron(III) bromide and hydrogen gas. Determine which element is reduced and which is oxidized in this reaction. • 2Fe + 6HBr → 2Fe(III)Br3 + 3H2

  22. Homework • Write the equation for the reaction of iron metal with hydrobromic acid to form iron(III) bromide and hydrogen gas. Determine which element is reduced and which is oxidized in this reaction. • 2Fe + 6HBr → 2Fe(III)Br3 + 3H2

  23. Homework • Write the equation for the reaction of iron metal with hydrobromic acid to form iron(III) bromide and hydrogen gas. Determine which element is reduced and which is oxidized in this reaction. • 2Fe + 6HBr → 2Fe(III)Br3 + 3H2

  24. Homework • Alkali metals are strong reducing agents. Would you predict that their reducing ability would increase or decrease as you move down the family from sodium to francium?

  25. Homework • Alkali metals are strong reducing agents. Would you predict that their reducing ability would increase or decrease as you move down the family from sodium to francium? • Reducing agents give away electrons.

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