Types of Reactions

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What is a Double Replacement Reaction?

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A chemical reaction where two compounds exchange ions to form two new compounds.

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Example of a Double Replacement Reaction?

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PbCl2 + AgNO3 → Pb(NO3)2 + AgCl.

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What is a Decomposition Reaction?

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A reaction where one reactant breaks down into two or more products.

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Example of a Decomposition Reaction?

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2Pb(NO3)2 → 2PbO + 4NO2 + 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.

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Example of a Synthesis Reaction?

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NH3 + HCl → NH4Cl.

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What is a Single Replacement Reaction?

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A reaction where one element replaces another element in a compound.

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Example of a Single Replacement Reaction?

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Zn + CuSO4 → ZnSO4 + Cu.

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What is a Combustion Reaction?

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A reaction where a substance combines with oxygen, releasing energy in the form of light or heat.

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Example of a Combustion Reaction?

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CH4 + 2O2 → CO2 + 2H2O.