Cmc chapter 19

Chapter Menu Redox Reactions Section 19.1 Oxidation and Reduction Section 19.2 Balancing Redox Equations Exit Click a hyperlink or folder tab to view the corresponding slides.

Section 19-1 Section 19.1 Oxidation and Reduction ,[object Object],spectator ion: an ion that does not participate in a reaction and is not usually shown in an ionic equation ,[object Object],[object Object],[object Object]

Section 19-1 Section 19.1 Oxidation and Reduction (cont.) oxidation-reduction reaction redox reaction oxidation Oxidation and reduction are complementary—as an atom is oxidized, another atom is reduced. reduction oxidizing agent reducing agent

Section 19-1 Electron Transfer and Redox Reactions ,[object Object]

Section 19-1 Electron Transfer and Redox Reactions (cont.)

Section 19-1 Electron Transfer and Redox Reactions (cont.) ,[object Object],[object Object],[object Object],[object Object]

Section 19-1 Electron Transfer and Redox Reactions (cont.) ,[object Object],[object Object],[object Object]

Section 19-1 Electron Transfer and Redox Reactions (cont.) ,[object Object]

Section 19-1 Oxidizing and Reducing Agents ,[object Object],[object Object]

Section 19-1 Oxidizing and Reducing Agents (cont.) ,[object Object],[object Object]

Section 19-1 Redox and Electronegativity ,[object Object],[object Object],[object Object],[object Object]

Section 19-1 Redox and Electronegativity (cont.) ,[object Object],[object Object]

Section 19-1 Redox and Electronegativity (cont.)

Section 19-1 Determining Oxidation Numbers ,[object Object]

Section 19-1 Determining Oxidation Numbers (cont.)

Section 19-1 Oxidation Numbers in Redox Reactions ,[object Object],[object Object],[object Object]

Section 19-1 Oxidation Numbers in Redox Reactions (cont.)

[object Object],[object Object],[object Object],[object Object],Section 19-1 Section 19.1 Assessment In a redox reaction, the reducing agent is: A. the substance that is reduced B. the substance that is oxidized C. the substance that gains electrons D. none of the above

[object Object],[object Object],[object Object],[object Object],Section 19-1 Section 19.1 Assessment In redox reactions, more electronegative elements tend to: A. be reduced B. be reducing agents C. lose electrons D. not change

Section 19-2 Section 19.2 Balancing Redox Reactions ,[object Object],net ionic equation: an ionic equation that includes only the particles that participate in the reaction ,[object Object],[object Object]

Section 19-2 Section 19.2 Balancing Redox Reactions (cont.) oxidation-number method species half-reaction Redox equations are balanced when the total increase in oxidation numbers equals the total decrease in oxidation numbers of the atoms involved in the reaction.

Section 19-2 The Oxidation-Number Method ,[object Object],[object Object]

Section 19-2 The Oxidation-Number Method (cont.) ,[object Object],[object Object]

Section 19-2 Balancing Net Ionic Redox Equations ,[object Object],[object Object],[object Object]

Section 19-2 Balancing Redox Equations Using Half-Reactions ,[object Object],[object Object]

Section 19-2 Balancing Redox Equations Using Half-Reactions (cont.) ,[object Object]

Section 19-2 Balancing Redox Equations Using Half-Reactions (cont.)

[object Object],[object Object],[object Object],[object Object],Section 19-2 Section 19.2 Assessment A redox reaction split into two parts is called ____. A. net reaction B. oxidation-reaction C. half-reaction D. reduction-reaction

[object Object],[object Object],[object Object],[object Object],Section 19-2 Section 19.2 Assessment In acid solution, what would you use to balance the charge in a redox-reaction? A. electrons B. hydrogen ions and water C. hydroxide ions and water D. hydrogen ions and hydroxide ions

Resources Menu Chemistry Online Study Guide Chapter Assessment Standardized Test Practice Image Bank Concepts in Motion

Study Guide 1 Section 19.1 Oxidation and Reduction Key Concepts ,[object Object],[object Object],[object Object]

Study Guide 1 Section 19.1 Oxidation and Reduction (cont.) Key Concepts

Study Guide 2 Section 19.2 Balancing Redox Equations Key Concepts ,[object Object],[object Object],[object Object]

Study Guide 2 Section 19.2 Balancing Redox Equations (cont.) Key Concepts ,[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],Chapter Assessment 1 What type of reaction involves the transfer of electrons from one atom to another? A. synthesis B. decomposition C. double replacement D. redox

[object Object],[object Object],[object Object],[object Object],Chapter Assessment 2 Less electronegative atoms in redox reactions are most often ____. A. oxidized B. reduced C. oxidizing agents D. neutral

[object Object],[object Object],[object Object],[object Object],Chapter Assessment 3 Any chemical unit involved in a process is called a(n) ____. A. atom B. type C. species D. ion

[object Object],[object Object],[object Object],[object Object],Chapter Assessment 4 Determine the oxidation number of oxygen in HNO 3 . A. +3 B. –3 C. +2 D. –2

[object Object],[object Object],[object Object],[object Object],Chapter Assessment 5 Determine the oxidation number of nitrogen in HNO 3 . A. +1 B. +4 C. +5 D. –5

[object Object],[object Object],[object Object],[object Object],STP 1 In the reaction MgI 2 + Br 2 -> MgBr 2 + I 2 , what is the oxidation number of I 2 ? A. –1 B. +1 C. 0 D. +½

[object Object],[object Object],[object Object],[object Object],STP 2 Which is NOT an oxidizing agent in a redox reaction? A. substance reduced B. electron acceptor C. oxidizer of another substance D. electron donor

[object Object],[object Object],[object Object],[object Object],STP 3 How does the oxidation number change in sodium in the following equation? 2NaI(aq) + Cl 2 (aq) -> 2NaCl(aq) + I 2 (aq) A. It changes from 0 to –1. B. It changes from –1 to 0. C. It changes from 2 to –2. D. no change

[object Object],[object Object],[object Object],[object Object],STP 4 If the temperature in a system is held constant, the pressure of a gas must do what when the volume is increased? A. no change B. increase C. decrease D. unable to determine

[object Object],[object Object],[object Object],[object Object],STP 5 What is the oxidizing agent in the following equation? Na 2 SO 4 + 4C -> Na 2 S + 4CO A. C B. S C. O D. Na

IB Menu Click on an image to enlarge.

CIM Figure 19.2 Redox Reaction Table 19.1 Summary of Redox Reactions

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Cmc chapter 19

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Cmc chapter 19