'Half reaction method' diaporamas de présentation

Chapter 18 Electrochemistry

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Chapters 3 and 4 Chemical Reactions

Chapters 3 and 4 Chemical Reactions. Chemical Reactions. Chemical reactions are processes in which one set of chemicals are converted to a new set of chemicals Chemical reactions are described by chemical equations. Chemical Equations.

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Chapter 20 Oxidation-Reduction Reactions (Redox Reactions)

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Electrochemistry

Electrochemistry. The transfer of electrons provides a means for converting chemical energy to electrical energy, or vice versa. The study of the relationship between electricity and chemical reactions is called electrochemistry. Electrochemical reactions are oxidation

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REDOX Reactions

REDOX Reactions. Chapter 18. REDOX Reactions. Oxidation number - In order to keep track of electrons in chemical reactions, chemists assign an oxidation number to each element. Determining Oxidation States. Oxidation number of an element in its native state is zero.

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CHAPTER 20

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Oxidation Reduction Reactions

Oxidation Reduction Reactions. Oxidation Number Rules. The oxidation number of any free, uncombined element is zero. The oxidation number of an element in a simple (monatomic) ion is the charge on the ion.

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I. Oxidation and Reduction Defined

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Redox Reactions

Redox Reactions. 13.1b Complex Half- Rxtns. Half-Reaction Method. separate the full equation into 2 half-reactions: oxidation and reduction balance each half-reaction separately add them together to get full balanced equation. Steps for acidic solution.

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Redox Reactions

Redox Reactions. 13.1b Complex Half- Rxtns. Half-Reaction Method. separate the full equation into 2 half-reactions: oxidation and reduction balance each half-reaction separately add them together to get full balanced equation. Steps for acidic solution.

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OXIDATION REDUCTION REACTIONS

OXIDATION REDUCTION REACTIONS. Rules for Assigning Oxidation States

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REDOX

REDOX. Oxidation and Reduction Chapters 20 and 21. What is redox ? Examples. Corrosion (Rusting) Spoiling of Food Voltaic Cells Batteries Electroplating. What is redox ? Examples. Oxidation. Reduction. Complete loss of electrons (ionic)

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Balancing Redox Equations

Balancing Redox Equations. Balancing Redox Equations. In balancing redox equations, the # of electrons lost in oxidation (the increase in ox. #) must equal the # of electrons gained in reduction (the decrease in ox. #) There are 2 methods for balancing redox equations:

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Oxidation and Reduction

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