Types of Chemical Reactions

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What is a Composition/Synthesis Reaction?

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A type of chemical reaction where two or more substances combine to form a single compound. Example: A + B → AB.

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What is a Decomposition Reaction?

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A type of chemical reaction where a single compound breaks down into two or more simpler substances. Example: AB → A + B.

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What is a Single Replacement Reaction?

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A type of chemical reaction where one element replaces another in a compound. Example: A + BC → AC + B.

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What is a Double Replacement Reaction?

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A type of chemical reaction where two compounds exchange ions to form two new compounds. Example: AB + CD → AD + CB.

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What is Combustion Reaction?

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A type of chemical reaction that occurs when a substance combines with oxygen, releasing energy in the form of light or heat. Example: Hydrocarbon + O₂ → CO₂ + H₂O.

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What is an Element?

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A pure substance that cannot be broken down into simpler substances by chemical means. Example: Carbon (C), Oxygen (O).

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What is a Compound?

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A substance formed when two or more elements chemically bond together. Example: Water (H₂O), Sodium Chloride (NaCl).

Front

What is the general equation for a Synthesis Reaction?

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A + B → AB.

Front

What is the general equation for a Decomposition Reaction?

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AB → A + B.

Front

What is the general equation for a Single Replacement Reaction?

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A + BC → AC + B.