Types of Chemical 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. Example: BaCl₂(aq) + K₂CrO₄(aq) → BaCrO₄(s) + 2KCl(aq).

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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. Example: 2H₂O → 2H₂ + O₂.

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What is a Synthesis Reaction?

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A reaction where two or more simple substances combine to form a more complex product. 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. Example: Zn + CuSO₄ → ZnSO₄ + Cu.

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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: C₄H₁₀ + O₂ → CO₂ + H₂O.

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What is an Endothermic Reaction?

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A reaction that absorbs heat from its surroundings. Example: Photosynthesis.

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What is an Exothermic Reaction?

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A reaction that releases heat to its surroundings. Example: Combustion of fuels.

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What is the general form of a Synthesis Reaction?

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A + B → AB, where A and B are reactants that combine to form a product.

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What is the general form of a Decomposition Reaction?

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AB → A + B, where a compound breaks down into its components.

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What is the general form of a Single Replacement Reaction?

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A + BC → AC + B, where an element replaces another in a compound.