5.2 Types of Reactions

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What is a Double Replacement Reaction?

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A type of chemical reaction where two compounds exchange ions or bonds to form two new compounds. Example: Na2S + 2HCl -> H2S + 2NaCl.

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What is a Decomposition Reaction?

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A reaction where a single compound breaks down into two or more simpler products. General formula: AB -> A + B. Example: 2H2O -> 2H2 + O2.

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What is a Synthesis Reaction?

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A reaction where two or more reactants combine to form a single product. General formula: A + B -> AB. Example: 2H2 + O2 -> 2H2O.

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What is a Single Replacement Reaction?

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A reaction where one element replaces another in a compound. General formula: A + BC -> AC + B. Example: Zn + 2HCl -> ZnCl2 + H2.

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What is a Combustion Reaction?

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A reaction that occurs when a substance combines with oxygen, releasing energy in the form of light or heat. Example: CH4 + 2O2 -> CO2 + 2H2O.

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What is the general formula for a Double Replacement Reaction?

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AB + CD -> CB + AD.

Front

What is the general formula for a Decomposition Reaction?

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AB -> A + B.

Front

What is the general formula for a Synthesis Reaction?

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A + B -> AB.

Front

What is the general formula for a Single Replacement Reaction?

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A + BC -> AC + B.

Front

What is the general formula for a Combustion Reaction?

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Typically involves a hydrocarbon reacting with oxygen: CxHy + O2 -> CO2 + H2O.