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Which statement best defines reduction?

Which statement best defines reduction?. 16.1. The loss of protons The gain of oxygen atoms The loss of hydrogen atoms The gain of electrons Two of the above. Which statement best defines reduction?. 16.1. The loss of protons The gain of oxygen atoms The loss of hydrogen atoms

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Which statement best defines reduction?

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  1. Which statement best defines reduction? 16.1 The loss of protons The gain of oxygen atoms The loss of hydrogen atoms The gain of electrons Two of the above

  2. Which statement best defines reduction? 16.1 The loss of protons The gain of oxygen atoms The loss of hydrogen atoms The gain of electrons Two of the above

  3. Which of the following statement best describes oxidation and reduction reactions? 16.2 An oxidation reaction must occur when a reduction reaction occurs. The reactions occur only between two metals. Half electrons are transferred in half reactions. The reactions always involve oxygen. All of the above

  4. Which of the following statement best describes oxidation and reduction reactions? 16.2 An oxidation reaction must occur when a reduction reaction occurs. The reactions occur only between two metals. Half electrons are transferred in half reactions. The reactions always involve oxygen. All of the above

  5. A reducing agent: 16.3 Causes another substance to gain electrons Causes another substance to gain oxygen atoms Causes another substance to gain hydrogen atoms Causes another substance to lose electrons Two of the above

  6. A reducing agent: 16.3 Causes another substance to gain electrons Causes another substance to gain oxygen atoms Causes another substance to gain hydrogen atoms Causes another substance to lose electrons Two of the above

  7. In the following reaction: Fe(s) + Cu2+(aq) → Fe2+(aq) + Cu(s)iron is: 16.4 Oxidized Reduced Synthesized Neutralized None of the above

  8. In the following reaction: Fe(s) + Cu2+(aq) → Fe2+(aq) + Cu(s)iron is: 16.4 Oxidized Reduced Synthesized Neutralized None of the above

  9. In the following reaction: Cu(s) + 2AgNO3(aq) → Cu(NO3)2(aq) + 2Ag(s)which species is reduced? 16.5 Cu Ag1+ NO31– Cu2+ Ag

  10. In the following reaction: Cu(s) + 2AgNO3(aq) → Cu(NO3)2(aq) + 2Ag(s)which species is reduced? 16.5 Cu Ag1+ NO31– Cu2+ Ag

  11. In the following reaction: 3Mg(s) + N2(g) → Mg3N2(s)nitrogen is the: 16.6 Oxidizing agent Redox agent Reducing agent Neutralizing agent None of the above

  12. In the following reaction: 3Mg(s) + N2(g) → Mg3N2(s)nitrogen is the: 16.6 Oxidizing agent Redox agent Reducing agent Neutralizing agent None of the above

  13. In the following reaction: Fe2O3(s) + 3CO(g) → 2Fe(s) + 3CO2(g)the reducing agent is: 16.7 Fe Fe2+ CO Fe2O3 There is none.

  14. In the following reaction: Fe2O3(s) + 3CO(g) → 2Fe(s) + 3CO2(g)the reducing agent is: 16.7 Fe Fe2+ CO Fe2O3 There is none.

  15. Which of the following is an example of a redox reaction? 16.8 KOH(aq) + HCl(aq) → H2O(l) + KCl(aq) C3H8(g) + 5O2(g) → 4H2O(g) + 3CO2(g) AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq) All of the above Two of the above

  16. Which of the following is an example of a redox reaction? 16.8 KOH(aq) + HCl(aq) → H2O(l) + KCl(aq) C3H8(g) + 5O2(g) → 4H2O(g) + 3CO2(g) AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq) All of the above Two of the above

  17. The oxidation state of S in S8 is: 16.9 -2 -1 0 +2 -8

  18. The oxidation state of S in S8 is: 16.9 -2 -1 0 +2 -8

  19. The oxidation state of copper in CuBr2 is: 16.10 -2 -1 0 +1 +2

  20. The oxidation state of copper in CuBr2 is: 16.10 -2 -1 0 +1 +2

  21. The sum of the oxidation states for all of the atoms in HClO4 is: 16.11 3 6 0 -7 -8

  22. The sum of the oxidation states for all of the atoms in HClO4 is: 16.11 3 6 0 -7 -8

  23. What is the oxidation state of Sb in H2SbO31– 16.12 -1 +5 +3 +4 -3

  24. What is the oxidation state of Sb in H2SbO31– 16.12 -1 +5 +3 +4 -3

  25. What are the oxidation states of oxygen in H2O2 and OH1–, respectively? 16.13 0 and 0 -1 and -1 -4 and -2 0 and -1 -1 and -2

  26. What are the oxidation states of oxygen in H2O2 and OH1–, respectively? 16.13 0 and 0 -1 and -1 -4 and -2 0 and -1 -1 and -2

  27. The following is an activity series with the most reactive metal at the top: Mg(s) → Mg2+(aq) + 2e– Zn(s) → Zn2+(aq) + 2e–H2(g) → 2H1+(aq) + 2e– Au(s) → Au3+(aq) + 3e–Which reaction in this list is NOT spontaneous? 16.20 Au(s) + Mg2+(aq)→ Mg(s) + Zn2+(aq)→ Zn(s) + Au3+(aq) → Mg(s) + 2H1+(aq) → All of the above

  28. The following is an activity series with the most reactive metal at the top: Mg(s) → Mg2+(aq) + 2e– Zn(s) → Zn2+(aq) + 2e–H2(g) → 2H1+(aq) + 2e– Au(s) → Au3+(aq) + 3e–Which reaction in this list is NOT spontaneous? 16.20 Au(s) + Mg2+(aq)→ Mg(s) + Zn2+(aq)→ Zn(s) + Au3+(aq) → Mg(s) + 2H1+(aq) → All of the above

  29. Based on the following activity series, with the most active metal at the top: Mg(s) → Mg2+(aq) + 2e– Zn(s) → Zn2+(aq) + 2e–H2(g) → 2H1+(aq) + 2e– Au(s) → Au3+(aq) + 3e–which metal in the list below will dissolve in hydroiodic acid, a strong acid? 16.21 Mg Zn Au All of the above Two of the above

  30. Based on the following activity series, with the most active metal at the top: Mg(s) → Mg2+(aq) + 2e– Zn(s) → Zn2+(aq) + 2e–H2(g) → 2H1+(aq) + 2e– Au(s) → Au3+(aq) + 3e–which metal in the list below will dissolve in hydroiodic acid, a strong acid? 16.21 Mg Zn Au All of the above Two of the above

  31. Based on the following activity series, with the most active metal at the top: Mg(s) → Mg2+(aq) + 2e– Zn(s) → Zn2+(aq) + 2e–H2(g) → 2H+(aq) + 2e– Au(s) → Au3+(aq) + 3e– which metal listed is the most resistant to corrosion? 16.22 Mg Zn Au Mg2+ Au3+

  32. Based on the following activity series, with the most active metal at the top: Mg(s) → Mg2+(aq) + 2e– Zn(s) → Zn2+(aq) + 2e–H2(g) → 2H+(aq) + 2e– Au(s) → Au3+(aq) + 3e–which metal listed is the most resistant to corrosion? 16.22 Mg Zn Au Mg2+ Au3+

  33. The usual electric current in a wire is the flow of: 16.23 Protons Electrons Neutrons Quarks Alpha particles

  34. The usual electric current in a wire is the flow of: 16.23 Protons Electrons Neutrons Quarks Alpha particles

  35. In an electrochemical cell, __________ occurs at the cathode 16.24 Oxidation Reduction Electrolysis Redox Combustion

  36. In an electrochemical cell, __________ occurs at the cathode 16.24 Oxidation Reduction Electrolysis Redox Combustion

  37. Which of the following is NOT a component of an electrochemical cell? 16.25 A cathode An anode A salt bridge A wire All of the aboveare components.

  38. Which of the following is NOT a component of an electrochemical cell? 16.25 A cathode An anode A salt bridge A wire All of the aboveare components.

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