Redox Reactions

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Oxidation
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The process of losing electrons
Oxidation number increases
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Reduction
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The process of gaining electrons
Oxidation number decreases
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Oxidizing Agent
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Whatever species is being reduced/gaining electrons
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Reduction Agent
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Whatever species is being oxidized/losing electrons
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Electrolysis
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Decomposing a chemical using electricity
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Combination Reactions
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Two or more substances combine to form a single product
A + B ==> AB
Don’t have to be redox
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Water and metallic oxide react to form
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Metal hydroxide
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Water and nonmetallic oxide react to form
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Acid
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Decomposition Reactions
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The breakdown of a compound into two of more components
AB ==> A + B
Don’t have to be redox
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Electrolysis (decomposition)
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Breaks compound down into elemental form
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Metallic chlorates when heated (decomposition)
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Metal chlorides and oxygen gas
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Metal carbonates (decomposition)
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Metallic oxide and carbon dioxide
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Metal Displacement
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Any neutral metal will replace a metal below it (toward F) on the activity
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Alkali metal/CaBaSr (can be in hydride form) + water
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Metal hydroxide and hydrogen gas
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Metals more reactive than H+ added to an acid
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Salt and hydrogen
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Unreactive metal and oxyacid
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Nonmetallic oxide gas + water + salt
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Halogen displacement
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F>Cl>Br>I
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Disproportiation reaction
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An element in one oxidation state is both oxidized and reduced
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Combustion reaction
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Compound + oxygen gas
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Combustion reaction with carbon and hydrogen
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Carbon dioxide and water

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