Types of chemical reactions

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What is a chemical reaction?

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A process in which substances (reactants) undergo a transformation to form new substances (products).

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What are the five main types of chemical reactions?

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1. Synthesis 2. Decomposition 3. Single replacement 4. Double replacement 5. Combustion

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Define Synthesis Reaction.

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A type of chemical reaction where two or more reactants combine to form a single product.

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Define Decomposition Reaction.

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A type of chemical reaction where a single compound breaks down into two or more simpler products.

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Define Single Replacement Reaction.

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A type of chemical reaction where one element replaces another element in a compound.

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Define Double Replacement Reaction.

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A type of chemical reaction where two compounds exchange ions or bonds to form two new compounds.

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Define 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 and heat.

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Example of a Synthesis Reaction.

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2H₂ + O₂ → 2H₂O (Hydrogen gas combines with oxygen gas to form water.)

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Example of a Decomposition Reaction.

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2H₂O → 2H₂ + O₂ (Water decomposes into hydrogen and oxygen gases.)

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Example of a Single Replacement Reaction.

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Zn + CuSO₄ → ZnSO₄ + Cu (Zinc replaces copper in copper sulfate.)